Which statement best describes the relationship that exists among proteins, DNA, and cells?
A Proteins are made up of DNA, which determines the cells that are produced.
B Cells contain DNA, which controls the production of proteins.
C Proteins combine to produce cells, which produce DNA.
D DNA is made up of proteins, which tell a cell how to function.
Answers
Answer: cells contain DNA, which controls the production of proteins
Explanation:
The statement best describes the relationship that exists among proteins, DNA, and cells - B. Cells contain DNA, which controls the production of proteins.
A cell contains DNA that produces proteins
A cell has many substances and organelles present in it, that all have specific functions in the cell. DNA is the hereditary unit of the cell that contains genetic information about growth, development, and reproduction.
DNA helps in synthesizing protein by a two-step process called protein synthesis. The first step called transcription involves copying the instruction from DNA into an mRNA sequence and the second is producing an aminoacid chain by translating the mRNA sequence.
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Related Questions
cooking improves the taste of food and makes it easy to digest . Are any nutrients lost .Explain
Answers
Answer:
yes it's true that cooking improve the taste of food and make it easier to digest while cooking some nutrients lost. raw materials are naturally surrounded by environment with nutrients. the ingredients which are using in cooking are also responsible for lost of nutrients.
Match the monomer to the correct polymer. (Link one from the top list to one from the bottom list, until each one has a link to one from the other.)
--
1a. polypeptide/protein
1b. polysaccharide
1c. nucleic acid
1d. lipid
--
2a. monosaccharide
2b. nucleotide
2c. fatty acid
2d. nucleotide
Answers
Answer:
Polymer Monomer
1. Polypeptide/protein -----------------------→ Amino acid
2. Polysaccharide ------------------------------→ Monosaccharide
3. Nucleic acid -----------------------------------→ Nucleotide
4. Lipid ----------------------------------------------→ Fatty acid
Explanation:
Monomers are simple molecules that when joined together and form chains become polymers, a process called polymerization, which is mediated by polymerase enzymes.
Monomers are simple molecules that when joined together and form chains become polymers, a process called polymerization, which is mediated by polymerase enzymes.
Peptides and proteins are formed by the addition of specific amino acid sequences. Polysaccharides, or complex sugars, are formed by the addition of monosaccharides, such as glucose. A nucleic acid, such as DNA or RNA, consists of chains or strands that are formed by nucleotide sequences. Lipids are the polymerized form of fatty acids.What are the impacts of that process of production
on the environment, on society and
on individuals?
Answers
Answer:
Lack of distinctive advantage in product performance and price.
Over estimation of the target market which may result in low demand.
Inability to utilize company strength to capture profitable opportunities.
Unpredictable change in consumers preference for goods and services.
Negative Effects of Production on Environment and Society. It leads to the pollution of the environment (environmental pollution) It leads to erosion as a result of big holes created by construction industries.
Explanation:
hope this helps you, sorry if it is not what you are looking for.
- Explain how many ancient and medieval societies forwarded marine science even though
they were not specifically addressing issues in marine science.
Answers
Many ancient and medieval societies forwarded marine science even though they were not specifically addressing issues in marine science because marine environments were an important part of their daily lives, economies, and cultures, and they relied on the sea for transportation, trade, food, and warfare.
Marine science is a multidisciplinary field that studies the oceans and marine life, and includes disciplines such as oceanography, marine biology, and marine geology. While modern marine science is a relatively recent field, many ancient and medieval societies had a deep knowledge and understanding of marine environments, based on their experiences and interactions with the sea.
For example, ancient civilizations such as the Phoenicians, Greeks, and Romans were skilled seafarers, traders, and fishermen, and developed advanced shipbuilding, navigation, and fishing techniques. They also had knowledge of marine flora and fauna, and used them for medicinal, culinary, and ritual purposes. Similarly, medieval societies such as the Vikings, Arabs, and Chinese explored and traded across the seas, and contributed to the development of cartography, astronomy, and mathematics.
Therefore, even though they were not specifically addressing issues in marine science, these societies made significant contributions to our understanding of the sea and its importance for human societies.
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During electrophoresis, DNA fragments move toward the anode. What does this
indicate about the DNA?
A. It is very small.
B. It has a negative charge.
C. It has a positive charge. D. It has a high molecular weight.
Answers
Answer:
During electrophoresis, DNA fragments move toward the anode, which indicates that it has a negative charge.
Explanation:
The electrophoresis or gel electrophoresis of DNA, is a procedure that allows the separation of DNA fragments, according to their size. The presence of phosphate groups -present in the strands- gives the DNA the negative charge that induces it to move towards the anode during electrophoresis.
Each DNA fragment has a specific size and charge, and electrophoresis the fragments of equal size or charge are grouped in the same place in the gel.
The other options do not apply because:
A. It is very small and C. It has a positive charge. D. It has a high molecular weight. The size of the DNA fragment does not influence its electrophoretic behavior.
B. It has a positive charge. DNA is negatively charged, due to the presence of phosphate groups in the molecule.
Do eukariota cells have mitochondria?
Answers
Do Eukaryotic Cells have Mitochondria?
The answer is YESIn addition to the nucleus, eukaryotic cells may contain several other types of organelles, which may include mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus, and lysosomes.
What is a Eukaryotic cell?
A eukaryotic cell is one of two different types of cells. Organisms that are based on the eukaryotic cell are called “eukaryotes” and include plants, animals, fungi, and protists.
What is Mitochondria?
The mitochondrion (plural mitochondria) is a membrane-bound organelle found in the cytoplasm of eukaryotic cells. It is the power house of the cell; it is responsible for cellular respiration and production of (most) ATP in the cell. Each cell can have from one to thousands of mitochondria. Mitochondria also contain extranuclear DNA that encodes a number of rRNAs, tRNAs, and proteins.
(HELP FAST) A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as: 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. Where in the branching tree would you most likely write "lives on land during all life stages"? Explain your answer.
Answers
"The derived shared characteristic 'Terrestrial during all stages' should be placed at the base of the tree diagram."
SupThe characteristic "Terrestrial during all stages" is a shared characteristic among all five species being compared in the branching tree diagram. This means that it is a characteristic that all of these species have in common, and therefore it is likely that it was present in their common ancestor.
Since the base of the tree represents the common ancestor of the species being compared, it makes sense to place this characteristic at the base of the tree. This also helps to show that this characteristic is a defining trait of the group of species being compared and that it has been present in their lineage since their common ancestor.
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g neurobiology regarding the synaptic vesicle recycling pathway, when _____ the correct option it can be directly refilled with neurotransmitter it can be destroyed by ca ._______ membrane it can be destroyed by astrocytes it can fuse with a lysosome in the synaptic end bulb
Answers
Understanding neurobiology, after Ca2+-dependent fusion, the synaptic vesicles' membrane and proteins are recycled via endocytosis, at which point they are once again supplied with neurotransmitters and prepared for the subsequent cycle of depolarization and fusion.
Reuptake, enzymatic cleft destruction, and diffusion are the three mechanisms through which neurotransmitter termination can take place. Neurotransmitters are eliminated by a variety of processes, but they are always either degraded by transmitter-specific enzymes, reabsorbed into nearby glial cells or nerve terminals, or a combination of these processes. Although the brain has a variety of synapses, they may be broadly categorized into electrical synapses and chemical synapses.
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How does adenosine triphosphate (ATP) become adenosine diphosphate (ADP)?
ATP stores energy as a phosphate bond is formed.
ATP releases energy as a phosphate bond is formed.
ATP releases energy as a phosphate bond is broken.
ATP stores energy as a phosphate bond is broken.
Answers
The correct answer is ATP releases energy as a phosphate bond is broken.
ATP (adenosine triphosphate) is converted into ADP (adenosine diphosphate) when a phosphate group is removed from ATP, resulting in the release of energy. This process is known as hydrolysis, where water molecules are used to break the bond between the terminal phosphate group and the rest of the molecule.
During cellular metabolism, ATP serves as the primary energy currency of the cell. When energy is required for various cellular processes, the phosphate bond in ATP is broken by an enzyme called ATPase. This enzymatic hydrolysis reaction cleaves off one of the phosphate groups, resulting in the formation of ADP and an inorganic phosphate molecule (Pi). The released phosphate group is then available to be used in other cellular reactions.
The conversion of ATP to ADP is an essential part of energy metabolism in cells. The energy released during this process is utilized to drive various cellular activities, such as muscle contraction, active transport of molecules across cell membranes, and synthesis of macromolecules. Once ATP is converted to ADP, it can be further hydrolyzed to AMP (adenosine monophosphate) if more energy is needed. Ultimately, the energy stored in ATP is released when the phosphate bond is broken, allowing cells to perform their vital functions.
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which snail species had a higher population in part one? which adaptations aided in their survival?
Answers
Answer:
it would be the Tasmanian snail
Explanation:
from the Brazilian forests they survived off the algy and moistness
what occurs to the sugar levels within the leaves at night?
Answers
xt >> The Cycles of Earth: Mastery Test
2
Select the correct the answer.
Which process will decrease the level of CO2 in the atmosphere?
OA. growing trees
Answers
The process that will decrease the level of CO2 in the atmosphere is Option A. growing trees.
Growing trees is the process that will decrease the level of CO2 in the atmosphere. Trees play a vital role in the carbon cycle, acting as carbon sinks by absorbing CO2 from the atmosphere through the process of photosynthesis. During photosynthesis, trees use sunlight, water, and CO2 to produce oxygen and sugars that are used for energy and growth. In this process, carbon is captured and stored in the tree's biomass, reducing the amount of CO2 in the atmosphere.
Cutting down trees, on the other hand, will increase the level of CO2 in the atmosphere. When trees are cut down, they release the carbon stored in their biomass back into the atmosphere in the form of CO2. This is a significant contributor to greenhouse gas emissions, which trap heat in the Earth's atmosphere and contribute to climate change.
Burning trees, as in option C, also increases the level of CO2 in the atmosphere. Burning wood releases the stored carbon in the form of CO2 and other greenhouse gases, contributing to the global carbon cycle and furthering climate change.
Increasing the human population, as in option D, does not directly affect the level of CO2 in the atmosphere. However, a larger population may lead to an increase in deforestation and the burning of fossil fuels, which would ultimately increase the level of CO2 in the atmosphere.
Therefore, Option A is Correct.
The question was Incomplete, Find the full content below :
Which process will decrease the level of CO2 in the atmosphere?
A. growing trees
B. cutting trees
C. burning trees
D. increasing the human population
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A lichen is an organism that structurally appears to be a single organism. But a lichen is actually two different organisms—a fungus and green algae—living together as one organism. The fungal partner derives its nutrition from the photosynthesizing algae. How does a lichen differ in its photosynthetic activity from Elysia chlorotica, the sea slug that’s considered to be a photosynthesizing animal?
Answers
The way that lichen differ in its photosynthetic activity from Elysia chlorotica, the sea slug that’s considered to be a photosynthesizing animal is option C. Lichens can photosynthesize only because of the living algal partner, while Elysia chlorotica incorporates chloroplasts from algae into its cells.
What is the lichen about?In a lichen, the algal partner is responsible for photosynthesis, and the fungal partner provides protection and structure for the algal cells. The relationship between the two organisms is permanent and essential for the survival of the lichen.
On the other hand, Elysia chlorotica, a sea slug is considered to be a photosynthesizing animal. It incorporates chloroplasts from the algae it feeds on and retain them, which allows it to carry out photosynthesis on its own. This mechanism is not a permanent association and the slug can photosynthesize only when it has the chloroplasts.
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See full question below
A lichen is an organism that structurally appears to be a single organism. But a lichen is actually two different organisms—a fungus and green algae—living together as one organism. The fungal partner derives its nutrition from the photosynthesizing algae. How does a lichen differ in its photosynthetic activity from Elysia chlorotica, the sea slug that’s considered to be a photosynthesizing animal?
A.
In lichens, the fungi photosynthesize on their own, while Elysia chlorotica forms a relationship with a photosynthesizing plant.
B.
In lichens, the relationship with the algae lasts throughout the life cycle, but in Elysia chlorotica, the relationship occurs only during the immature juvenile stage of the slug’s life cycle.
C.
Lichens can photosynthesize only because of the living algal partner, while Elysia chlorotica incorporates chloroplasts from algae into its cells.
D.
In lichens, the association between the fungi and algae is permanent, while Elysia chlorotica associates with a photosynthesizing organism only when it requires food.
What is human cell and define function ?
Answers
Cells in the human body number in the trillions and come in all shapes and sizes. These tiny structures are the basic unit of living organisms .The body contains around 50—100 trillion cells, and they vary widely in size, number, structure, and use.
Examples of Human Cell Types-
Many common types of human cells — such as bone cells and white blood cells — actually consist of several subtypes of cells. Each subtype, in turn, has a special structure and function.
Functions of human cell-
It protects the cell.It regulates the exchange of substances in and out of the cell.They process and bundle macromolecules in the cells.They modify, sort, and package proteins. That’s why Golgi bodies are tagged as the post office of the cell. They gather simple molecules and group them to form a complex.For more information about human cells see,
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Different types of cells are found in the human body which perform specialized functions such as circulation, respiration, excretion, transportation, etc.
What is Human cell?Human bodies are made up of eukaryotic cells. Cells are the basic building blocks of all the living things including animals, plants, fungi, and protists. The human body is composed of over trillions of cells. These cells provide structure for the body, take in nutrients from the food they eat, convert those nutrients from food into energy, and also carry out specialized functions.
Different types of cells which perform specialized functions in the human body include: stem cells, these are the embryonic stem cells and adult stem cells, one cells including osteoblasts, osteoclasts, osteocytes, skin cells including keratinocytes, melanocytes, merkel cells, langerhans cells, endothelial cells such as those lining blood vessels, and epithelial cells such as those lining body cavities.
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Check all that are true of the following scenario.
An archer strings an arrow on a bow and draws the string back. Aiming the bow
upwards at a 45 degree angle, the archer pauses with arms locked into position and
then releases the string. The arrow flies upwards making an arc and then sticks into
the trunk of a tree with an audible thud.
At least four different types of energy are illustrated in this example.
The first energy transformation in the scenario is chemical energy to kinetic.
From the time the archer draws the bow until the thud us heard, entropy increases in
the universe.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the
muscles of the archer.
When the arrow sticks into the tree the original energy has all been used up.
Answers
Statements 1 and 3 are true, while statements 2 and 4 are false.The first energy transformation in the scenario is chemical energy to kinetic. - True.
The archer converts chemical energy stored in their muscles into kinetic energy when they release the string and propel the arrow forward.From the time the archer draws the bow until the thud is heard, entropy increases in the universe. - False. Entropy is a measure of disorder or randomness in a system. In this scenario, the archer's actions do not necessarily lead to an increase in entropy.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the muscles of the archer. - False. Energy is conserved in a closed system, but some energy is lost as heat and sound during the process. Therefore, the energy of the arrow at the end may be less than the energy exerted by the archer's muscles.
When the arrow sticks into the tree, the original energy has all been used up. - False. Energy is not created or destroyed but rather transformed from one form to another. Some of the initial energy from the archer's muscles is transferred to the arrow's kinetic energy, but it is not entirely used up.In summary, statements 1 and 3 are true, while statements 2 and 4 are false.
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Look at the data related to honey bee population losses between 2006 and 2013 (Figure 1). Expand on the data. How would you revise this graph to include more detailed information? What information would you add or delete? Explain your answer, describing why you would make these changes.
Answers
Answer:
expand the data
Explanation:
Answer:
Explain
Explanation:
^^^^^
What would best describe the structure of the plasma membrane?
1.rigid (not flexible)
2.gaseous
3.solid
4.fluid (flexible)
Answers
Answer:
4. Fluid (Flexible)
Explanation:
Plasma membranes must be very flexible in order to allow certain cells, such as red blood cells and white blood cells, to change shape as they pass through narrow capillaries. The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
The scientists mapping the SNPs in the human genome noticed that groups of SNPs tended to be inherited together, in blocks known as haplotypes, ranging in length from 5,000 to 200,000 base pairs. There are as few as four or five commonly occurring combinations of SNPs per haplotype. Integrating what you've learned throughout this chapter and this unit, propose an explanation for this observation.
Answers
Answer:
SNPs have shown that only 0.1 % of DNA sequences are different in the human genome between different individuals, thereby all the inherited phenotypic variation observed in our species is associated with only 0.1 % of differences at the genome level
Explanation:
Haplotypes are block-like sequences of DNA that are inherited together due to low recombination rates. Moreover, single-nucleotide polymorphism (SNP) mapping is a very useful methodology used to map the site of SNP mutations (i.e., SNP variants). In this regard, it has been observed that there are approximately 10 million common SNPs in the human genome. These SNPs contribute to the wide range of phenotypic variation observed in human populations for different traits (e.g., eye color, hair, weight, height, etc). Moreover, researchers have determined that SNPs can be clustered into haplotypes, thereby haplotypes can be accurately sampled by as few as approx. 300,000 selected SNPs, which are sufficient to represent all of the genetic variation across different human genomes.
A class observes a mother bear and her cubs in the river. She is helping her cubs to survive. How is the mother helping her cubs survive? A. She is teaching them how to swim, B. She is teaching them how to get clean. be C. She is teaching th th how to catch food, D. She is teaching them where to find water.
Answers
Answer:
A. she is teaching them how to swim
Which could cause a
change to the carrying
capacity of a species in an
ecosystem?
A. seasons changing
B. continuous rotation of resources
C. more predators
D. consistent rain falls
Answers
The carrying capacity of a species in an ecosystem is the continuous rotation of resources. Option B.
As abiotic or biotic factors change so does the carrying capacity. Natural disasters can destroy ecosystem resources. When resources are destroyed, ecosystems can no longer support large populations. This reduces the payload. Increased food production through improved agricultural practices control of many diseases with modern medicine, and the use of energy to render historically uninhabitable areas.
Earth's habitable is an example of something that can expand its carrying capacity. Altering ecosystems can increase the carrying capacity of some species, as other species are overwhelmed and populated while others are dramatically reduced due to hunting. Carrying capacity is the maximum number of individuals in a population that the environment can support.
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Answer:
b) continuous rotation of resources
Explanation:
Continuous rotation of resources will cause a change to the carrying capacity of a species in an ecosystem. Therefore, the option (b) is the correct answer.
A researcher wants to examine the effect of fertilizer and the effect of sunlight on the yield of tomatoes. She bought 60 tomato plants at local garden store. She randomly assigned 30 tomato plants to be planted on the sunny side of the hill and 30 to be planted on the shady side. The 30 plants which are planted on the shady side are randomly assigned to one of three groups. The first group are grown with no fertilizer, the second group with a small amount of fertilizer, and the third group with a large amount of fertilizer. The 30 plants which are planted on the sunny side are likewise randomly assigned to one of three group. The first group are grown with no fertilizer, the second group with a small amount of fertilizer and the third group with a large amount of fertilizer. All tomato plants are planed at the same time and are all treated alike (in terms of how they are watered, weeded etc.). Each plant is grown to maturity. The total weight of tomatoes obtained from each plant is recorded. Identify the factor(s) and the number of levels for each. a) Sunny, shady (2 levels) b) No fertilizer, small amount of fertilizer, large amount of fertilizer (3 levels) c) No fertilizer and sunny, small amount of fertilizer and sunny, large amount of fertilizer and sunny, no fertilizer and shady, small amount of fertilizer and shady, large amount of fertilizer and shady (6 levels) d) Fertilizer (3 levels), location (2 levels) e) Fertilizer (3 levels), blocking variable – location (2 levels)
Answers
In this experiment, the fourth tomato plants—the group of tomatoes that do not get any fertilizers—serves as the control group.
Fertilizer is any substance, whether chemical or natural, applied to the soil with the intention of boosting productivity. Tomato groups behave as a reference group when fertilizer is added, whereas tomato groups that have no fertilizer added behave as a control group. The aforementioned description is true as a result. The group in which nothing is altered is known as the control group. To determine whether the changes you make in the experimental groups actually had an impact, use this as a foundation or baseline. In the absence of this, your experiment is worthless since there is no evidence that the adjustment you performed was the root cause of the result you observed.
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Two slices of bread were toasted to dry them out. Two slices were left untoasted. The four slices of bread were each put in a sealed bag and kept under different conditions. The table shows the findings after two days.
Answers
The warm and dry conditions helped the bread mold to grow.
Rhizopus stolonifer is commonly known as black bread mold. It is a member of Zygomycota and considered the most important species in the genus Rhizopus. It is one of the most common fungi in the world and has a global distribution.
The genus Rhizopus has the same common name, bread mold, as the entire phylum, Zygomycota, in which it is found. The Zygomycota are in the Kingdom Fungi, a group unified by two structural features, a filamentous structure.
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(A)
A. aa
C. A
AA
A
The gametes from the
parent in this image
will have what alleles
for the trait shown?
B. Aa
D. a
Answers
Answer:
c. A
Explanation:
hope this helps!
What are the actions of drugs on the nervous system?
Answers
The central nervous system directs the functions of all tissues of the body.
Numerous sensory signals are received by the peripheral nervous system, which then sends them to the brain through the spinal cord. The brain analyzes this incoming data and eliminates 99% of it as irrelevant. After sensory data has been analyzed, specific regions of the central nervous system start sending nerve impulses to organs or tissue so they can respond appropriately.
The activity and operation of the central nervous system can be affected in a wide range of ways by chemical factors. The explanations for the mechanisms of drug action may be hazy due to our limited understanding of how various brain region's function and the neurotransmitters in the brain.
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Not all science is generated through _______. There are other ways of understanding natural phenomena.
A. experimentation
B. observation
c. surveying
Answers
Answer:
B. observation
Explanation:
Answer:
A
Explanation:
Understanding natural phenomena is by Experimentation
How do solvent, solute, and solution relate to each other
Answers
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A solution is a homogeneous mixture consisting of a solute dissolved into a solvent. The solute is the substance that is being dissolved, while the solvent is the dissolving medium. Solutions can be formed with many different types and forms of solutes and solvents.
What two words best describe bacterial reproduction? Why?
Answers
Answer: Bacteria reproduce through a process called binary fission. During binary fission, the chromosome copies itself, forming two genetically identical copies. Then, the cell enlarges and divides into two new daughter cells. The two daughter cells are identical to the parent cell.
Explanation:
Which process connects glycolysis and the citric acid cycle?
A. lactic acid formation
B. acetyl CoA formation
C.electron transport
D. Krebs cycle
Answers
Answer: the answer is B
Explanation: i lied lolololloloolollololol
Please help I only have 10 mins! HELP ASAP
Answers
Answer:
structure determines function
Explanation:
305°
Find the distance CS, and the bearing of S from C.
1.2 km
Find
Х
3 ZXZY
29 cm
38 cm
WX
A
53°
Y
W
Z
47 cm
А
ABCD is a tetrahedron.
29°
16 cm
620
Work out the length of AC.
Work out the length of CD.
Given that BD = 17 cm, calculate angle BCD.
70°
B.
C
13 cm
FA TRIANGLE
Answers
Answer:
13x657
Explanation:
fyfdtyerdjytiu
\(\int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right.\)