The accompanying diagram can be used to illustrate a process
directly involved in
Answers
Answer:
A: tissue repair
Explanation:
the 46 in the cell was a giveaway that it is not meiosis so B and D are not correct. mitosis is the process of cell division that includes body/somatic cells. the diagram shows a cell being duplicated and the process in the middle looks similar to cytokinesis
Related Questions
Do Orcas provide oxygen?
Answers
orcas are a mammal and needs oxygen like humans, they have blowhole on the top of their head which help them breathe.
whenever they need oxygen, they come outside the water and take-up oxygen.
Like humans, they have lungs but is unable to take up oxygen all the time.
The whales can also store up oxygen as they have high content of hemoglobin and utilize it by slowing the metabolic rates and heart rates, while resting.
And they also cannot breathe through their mouth as the trachea is not connected to the whale throats.
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A population of deer mice lives in a neighborhood. Which of these changes to
the neighborhood could increase the carrying capacity of this population?
Answers
Under which of the following conditions would . lac operon produce the greatest amount of B-galactosidase? The least? Explain your reasoning Lactose present Ycs Glucose present Condition Condition Condition Condition Yes Yes No Ycs and 4 A mutant strain of E coli produccs f-galactosidase in both the presence absence= of lactose Whcre in the operon might the mulation in this strain be located? Examine Figure 16.7. What would be the effect of a drug that altered the structure of allolactose so that unable to bind t0 the regulator protein?
Answers
Under the condition of lactose present and Ycs, the lac operon would produce the greatest amount of β-galactosidase, while under the condition of glucose present, it would produce the least. This is because the presence of lactose and low glucose concentration stimulates the production of β-galactosidase.
β-galactosidase is essential for the breakdown of lactose into glucose and galactose. Hence, when lactose is present, it acts as an inducer by binding to the lac repressor protein, causing it to change its shape and release the DNA, which in turn initiates transcription of the genes encoding β-galactosidase. On the other hand, when glucose is present, it inhibits the synthesis of cyclic AMP, which is required for transcriptional activation of the lac operon, resulting in reduced production of β-galactosidase.
The mutation in the E.coli strain that produces β-galactosidase in both the presence and absence of lactose may be located at the promoter or the operator site of the operon. The promoter region is where RNA polymerase binds to initiate transcription, while the operator region is where the repressor protein binds to prevent transcription. Hence, the mutation could result in increased affinity of RNA polymerase for the promoter, allowing it to bypass the need for the inducer to initiate transcription. Alternatively, the mutation could decrease the affinity of the repressor protein for the operator, rendering it ineffective in blocking transcription even in the absence of lactose.
A drug that altered the structure of allolactose so that it is unable to bind to the regulator protein would result in the repression of the lac operon, even in the presence of lactose. Allolactose is the inducer that binds to the lac repressor protein to inactivate it, allowing transcription of the β-galactosidase gene. If the inducer is unable to bind to the repressor protein, it will remain bound to the operator, thereby preventing RNA polymerase from initiating transcription. Hence, the drug would mimic the absence of lactose, causing the lac operon to be repressed.
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In fruit flies normal wings (W) is dominant over vestigial wings (w). The results
of a cross, of two fruit flies, give the following results:
Normal wing 793 Vestigial wing 811
Answers
The possible genotype of the parents is most likely Ww and Ww, option D is correct.
The given data represents a phenotypic ratio of 793:811, which is approximately a 1:1 ratio. This suggests that the parents were most likely heterozygous for the wing size gene. In fruit flies, normal wings (W) are dominant over vestigial wings (w), and the genotypes that produce normal wings are either homozygous dominant (WW) or heterozygous (Ww), whereas the genotype that produces vestigial wings is homozygous recessive (ww).
The possible genotype of the parents can be Ww and Ww, or WW and Ww. A cross between Ww and Ww would result in a phenotypic ratio of 3:1, whereas a cross between WW and Ww would result in all offspring with normal wings (WW or Ww). As the observed ratio is closer to 1:1, it is more likely that the parents were heterozygous (Ww), option D is correct.
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The correct question is:
In fruit flies normal wings (W) is dominant over vestigial wings (w). The results of a cross, of two fruit flies, give the following results: Normal wing 793 Vestigial wing 811. Which of the following would be the possible genotype of parents?
A) WW and ww
B) WW and Ww
C) Ww and ww
D) Ww and Ww
E) WW and WW
Science not only has achievements but also challenges. Justify with examples.
Answers
The statement, 'Science not only has achievements but also challenges' is justified by the benefits and dangers that Humanity and Nature got from Science.
The development of Science led to a lot of benefits in the educational and medicinal fields. For example, Modern Science and Technology made online and live classes possible. So, whatever the crisis comes, the students are still able to continue their education. Construction and launching of satellites developed many countries.
And, the discovery of medicines and vaccines helped to overcome rare and lethal diseases reducing the death rate. Science also plays a vital role in Agriculture providing insecticides and pesticides and also leading to the growth of Hybrid Technology. The trending achievement of Science is Genetic Engineering and Plant Tissue Culture.
However, Science has a lot of disadvantages. The development and discovery of new devices has made a lot of children and adult addicted to them. It affects their education too. And, the building up of phone towers causes harness to tiny birds and their rays affect many living creatures.
The research in medicine by the wrong people creates the wrong medicines and addictive drugs. Also, the discovery of atoms and nuclei led to the development of nuclear weapons and reactors which had been used by a lot of countries for their political issues and it caused numerous deaths.
And, the CFC released from refrigerators, Carbon dioxide released from vehicles, etc depletes the ozone layer, which in turn causes Global warming. The discovery of plastics and polythenes that are non-biodegradable decreases the fertility of the soil. Thus, Science has both achievements and challenges.
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which trees, usually associated with coastal and tropical regions, can be found in the dry desert landscape of anza-borrego?
Answers
Answer: Elephant trees scientific name Bursera microphylla
Explanation:
The tree that is usually associated with coastal and tropical regions, which can be found in the dry desert landscape of Anza-Borrego, is the palm tree.
Palm trees are monocotyledonous, meaning they only have one seed leaf, and are a type of angiosperm (flowering plant). Palms are part of the Arecaceae family, which includes more than 2,500 species, making it one of the largest plant families in the world. Most palms are native to tropical and subtropical regions, with some species thriving in arid, desert, and cold environments.
The palm tree is one of the few trees that can thrive in the arid, dry desert landscape of Anza-Borrego. The native California fan palm (Washingtonia filifera) is found in the park's central area, and other palm trees, such as the Mexican fan palm (Washingtonia robusta) and the date palm (Phoenix dactylifera), have been introduced and can be found throughout the park.
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In the following equation, how many atoms of Oxygen (O) are present in the products
1
2
3
6
Answers
Answer:
3
Explanation:
jkljkl;jkl;jkl;jkl;jkl;klj;jkl;jkl;jkl;jkl;jkl;jkl;jl;j;
proteins are made at the ?blank
Answers
Answer:
below
Explanation: Ribosomes cell
The process used to build a lipid?
Answers
I believe it is called lipogenesis.
which laboratory tools are useful when looking at internal organs of an earthworm
Answers
Answer:
An earthworm's internal organs can be viewed through a dissecting microscope. This type of microscope allows enhanced observation of objects that are too large for a compound microscope. Because the magnification is low, this microscope cannot be used to examine cells.
What makes one animal more adapted than another?
1. It has acclimatized to its environment during its lifetime.
2. Its phenotype is better suited to its environment.
3. It is more fit, regardless of environment.
4. It will live longer than most other individuals.
Answers
Answer:
The answer is 2. its phenotype is better suited to its environment.
Explanation:
Adaptation is the process by which animals pass on genes that make their offspring increasingly better at surviving and reproducing in their given environment. and also I took the quiz.
Its phenotype is better suited to its environment," is generally the most significant factor. Therefore, option (2) is correct.
What is adaptation?Adaptation is a biological process by which a population of organisms becomes better suited to its environment over time. This process involves changes in an organism's behavioral, anatomical, or physiological traits that enable it to survive and reproduce in its environment.
Adaptations may be the result of natural selection, where certain traits that confer an advantage in the environment are passed on to offspring, leading to evolutionary changes in the population. Adaptations can be observed at different levels, from the molecular to the ecosystem, and they are crucial for the survival and success of species in their environments.
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Amoeba Sisters Video Recap: DNA Replication
Your turn to narrate! Narrate the illustrations below to explain the sequence of events occurring in DNA replication.
Answers
Before starting the explanation in the amoeba sister video, they explain what DNA replication is. We can say that DNA, which in eukaryotic cells is located in the nucleus, contains all the genetic information of a being and its duplication process is important for cell growth, reproduction and repair.
What is DNA replication?A DNA molecule is made up of two strands that complement each other. For example, if we have an F and an F' strand, in the replication process the strands separate and are used as templates for the formation of complementary strands. Thus, the nucleotide sequence of F determines the sequence of a new F' strand, and F' indicates the composition of a new F strand.
DNA replication processIn the video of the amoebas sisters it is briefly explained that..
DNA replication occurs in the 5' → 3' direction and the strands are separated by the action of enzymes, which break the bonds between the nitrogenous bases and unwind the strands, opening the double helix. As DNA uncoiling takes place, other enzymes act to catalyze the synthesis of two new sequences using the parent strands as a template. Each strand created joins an original strand of DNA. Therefore, the process is classified as semi-conservative. DNA is a double helix molecule and for its duplication to occur, the first step is to unpack this structure by the action of the DNA helicase enzyme. The helicase recognizes the origin of replication and works by breaking the hydrogen bonds in the nitrogenous bases A-T and C-G. This process occurs at several points and forms "replication bubbles". As the bonds unravel, it's like a zipper opening, so this step gives rise to a Y-shaped structure called the replication fork, the starting point of duplication.The primase enzyme is responsible for synthesizing a portion of RNA, called a primer. In this step, several primers are generated and are joined to the chain to start DNA synthesis. The DNA polymerase enzyme is the replication enzyme responsible for extending the new strand by adding the bases (A, C, G and T). This step is directed from the 5' end, with a phosphate group, to the 3' end, with a hydroxyl group. This phase is called continuous replication. Among the primers attached to the original strand, several pieces of DNA are attached and are called Okazaki fragments. As the sections will need to be joined later, this phase is called delayed. The exonuclease enzyme is responsible for removing the primers from the original strands after the formation of continuous and discontinuous strands. To avoid sequencing errors, a review and, if necessary, a correction is performed by another exonuclease. The enzyme DNA ligase causes the DNA fragments to be joined and the DNA sequenced into two continuous strands.thus, in a simple way, how DNA replication occurs in the video of the amoebas sisters.
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Which best explains how and why scientific knowledge continually expanded and improved
Answers
Answer:
Which best explains how and why scientific knowledge is continually expanded and improved? The scientific process flows in one direction and finds only facts that support a scientist's original idea. The scientific process is cyclical so that new facts inspire questions that lead to new studies.
Explanation:
Brainlist???
DNA makes RNA makes protein (written response)Words you NEED to use that goes along the process: DNA; mRNA; tRNA; amino acid; protein; ribosome; nucleus; transcription: translation It has to be at least 5 sentences or more.
Answers
The process of protein synthesis starts in the nucleus of the cell.
The first step is called "transcription"
The DNA's double helix is unwound so that the enzyme called RNA polymerase can read the DNA template strand, by binding to a region called promoter, and synthesize a single stranded molecule called mRNA.
After the mRNA molecule is synthesized by the RNA Polymerase, it undergoes a series of changed:
- "Splicing": during this process, sections of non coding RNA called "introns" are removed from the strand.
- "Editing" during this process, some nucleotides of the sequence are changed.
- "Polyadenylation" during this process a tail formed by adenine bases is attached to the mRNA string. This tail stabilized and protects the mRNA molecule from enzymatic degradation.
Once the mRNA molecule is ready, it leaves the nucleus and enters the cytoplasm. The mRNA travels to the ribosomes (these can be found free in the cytoplasm or attached to the walls of the endoplasmic reticulum).
Once the mRNA is in the ribosomes the second step of the protein synthesis begins, this phase is called "translation".
In this process, three molecules work together, the ribosomes, the mRNA, and the tRNA. The ribosomes have 3 binding sites, in one site the mRNA binds to the ribosome and the sequence is available for the tRNA to read. Then the tRNA molecules read the sequence of the mRNA and attach the corresponding amino acid, forming a chain of amino acids. This chain represents the primary structure of the protein.
Once the complete sequence of the mRNA was translated into the amino acid chain, the three molecules separate.
The mRNA is recycled into nucleobases, and the ribosome and tRNA are ready to start the translation process with the next mRNA molecule.
Finally, the amino acid chain undergoes several modifications so that the final protein is made.
When an enzyme becomes denatured, what often happens to the rate of reaction?
A. Rate of reaction increases
B. Rate of reaction stays the same
C. Rate of reaction decreases
Answers
Answer:
C
Explanation:
After a certain temperature, the reaction rate decreases because the heat starts to denature the enzyme so that it no longer can function.
Answer:
C. Rate of reaction decreases
Explanation:
As an enzyme becomes denatured, the rate of reaction decreases.
4 functions of blood in the body
Answers
Answer:
Blood has many functions and the 5 basic functions in the body are:
- transporting oxygen and nutrients to the lungs and tissues.
- forming blood clots to prevent excess blood loss.
- carrying cells and antibodies that fight infection.
- bringing waste products to the kidneys and liver, which filter and clean the blood.
- regulating body temperature.
When you turn on a lamp, energy is transferred electricity into light and _____ energy stores ,which are dispersed into the surroundings. (what word completes the sentence)
Answers
Answer:
Heat or Thermal
Explanation:
Answer:
The right answer is "heat" or "thermal"
Explanation:
Electric lamps generate both light and heat. Heat energy is stored in thermal energy stores.
A student investigated the effect of aged-grass compost (fertilizer madefrom decaying plant material) on the growth of bean plants. She thoughtthat the compost would provide extra nutrients and make plants growfaster. Thirty bean seeds were divided into three groups and planted indifferent flats (boxes). All seeds germinated after 12 days and wereallowed to grow for five days. The flats were each given the same amountof water and the same amount of light. Flat A was then fertilized with 3-month old compost; Flat B was given 6-month old compost and Flat Cwas given no compost. At the end of 14 days the height of each plant wasmeasured in centimeters. Which Flat was the control for this experiment?
Answers
In this experiment, the control group would be Flat C, because it has no compost, and the results obtained from it will show the growth of the plants in wild conditions, i.e without treatment (the composts of different maturity times).
URGENT!!!
Growing hay and grazing animals on land improves its ecological profile.
True
False
(Agricultrual Science)
Answers
In sexual reproduction, individuals transmit half of their nuclear genes to each of their offspring.
Which of the following is a true statement about sexual vs. asexual reproduction?
Answers
Sexual reproduction is a process that involves the fusion of gametes (the sperm from the male and the ovum from the female). As a result of sexual reproduction, individuals transmit half of their nuclear genes to each of their offspring.
Each gamete contributes one set of chromosomes to the offspring. This ensures that the offspring are genetically diverse, since each parent's set of chromosomes comes from the parent's parents and can combine in many different ways. This genetic diversity can allow for the evolution of new traits and adaptations in the population. Asexual reproduction, on the other hand, does not involve the fusion of gametes.
Rather, offspring are produced by a single parent and are genetically identical to that parent. This can be an advantage in certain situations, such as when the environment is stable and there is little need for genetic diversity. However, in changing environments, sexual reproduction can provide an advantage because it allows for more rapid adaptation to new conditions.
Therefore, the true statement about sexual vs. asexual reproduction is that in sexual reproduction, individuals transmit half of their nuclear genes to each of their offspring. This ensures genetic diversity that can allow for the evolution of new traits and adaptations in the population.
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PLEASE HELP!!
Aspects of a species’ habitat include:
a. the average rainfall it receives.
b. the amount of sunlight it gets.
c. the range of temperatures it experiences.
d. all of the above.
Answers
Answer:
D
explaination:
rainfalls can predict the habitat like rainforest and deserts. the amount of sunlight can predict how the species sleep and hunt. and temperatures can predict how animals adapt in hot or cold areas
A bacterial cell stains positive with the acid-fast stain. Which of the following is NOT true? A. It will be difficult to stain this cell with the Gram stain. B. It has a cell wall that contains waxy lipids. C. It has a cell wall that contains endotoxin. D. It may be a member of the genus Mycobacterium.
Answers
It has a cell wall that contains endotoxin is NOT true. Therefore, option (C) is correct.
The acid-fast stain is a differential stain used to identify bacteria that have waxy lipids in their cell walls, such as Mycobacterium and Nocardia species. These bacteria are called acid-fast because they resist decolorization with acid-alcohol after staining with a basic dye such as carbol fuchsin.
The cell walls of acid-fast bacteria contain high amounts of mycolic acids, which are long-chain fatty acids that make the cell wall waxy and hydrophobic. This property makes it difficult for traditional staining methods, such as the Gram stain, to penetrate and stain the cell wall. Therefore, statement A is true.
Endotoxin is a type of lipopolysaccharide found in the cell wall of Gram-negative bacteria, and it is released upon bacterial cell lysis or destruction. It can cause fever, inflammation, and shock in humans. However, acid-fast bacteria do not have endotoxin in their cell walls.
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Do plates move about 2 to 5 centimeters per year?
Answers
Answer:
Yes. Due to the magma in the mantle, the tectonic plates in the upper crust of the earth move because of a process called *convection. The heat from the magma causes the tectonic plates to move at a very very slow rate
*An example of this is when you're cooking food in a pan. The food is getting hotter because the heat rising from the stove heats the pan.
In simpler terms: Stove ~~ Pan --> hot food
*There is no direct contact between the stove and the pan which is a defining feature of convection.
5. What are virus hoaxes? Why are the hoaxes sometimes more dangerous than an actual virus?
Answers
Answer:
An actual computer virus is a malicious software, often known as malware, that can harm a computer and its users.
Virus hoaxes are false or misleading information about viruses that circulate through various communication channels.
They can be more dangerous than actual viruses due to their ability to spread quickly, cause panic, and undermine effective public health measures.
Virus hoaxes are deceptive messages or claims that often exaggerate the severity or impact of a particular virus. They can be spread through social media, email chains, or word of mouth. These hoaxes may include misinformation about symptoms, transmission methods, or false remedies, leading people to take ineffective or even harmful actions.
What makes virus hoaxes particularly dangerous is their potential to create panic and misinformation at a rapid pace. The viral nature of social media and other communication platforms allows these hoaxes to reach a wide audience within a short period. As a result, people may make decisions based on false information, such as avoiding necessary medical treatment, taking unnecessary precautions, or spreading fear and misinformation to others.
Moreover, virus hoaxes can undermine public health efforts by diverting attention and resources from legitimate preventive measures. They can erode trust in healthcare authorities and disrupt the dissemination of accurate information, making it harder for individuals to make informed decisions and follow recommended guidelines.
This can have severe consequences, especially during outbreaks or pandemics, where timely and accurate information is crucial for public safety. Therefore, it is essential to verify the credibility of information and rely on trusted sources to mitigate the risks associated with virus hoaxes.
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2. A science student is assigned to write an essay on a common
compound. Which substance could the student choose for this
assignment?
Answers
This type of cell can develop into different types of blood cells in a body. I will give brainiest to anyone who can help me with this
A. ectoderm
B. pluripotent stem cell
C. totipotent stem cell
D. multipotent stem cell
Answers
Answer:
c
Explanation:
because thats what I think the answer can be
B. pluripotent stem cell. Pluripotent stem cells are a type of stem cell that have the ability to differentiate into many different types of cells, including blood cells.
What are pluripotent cells?Pluripotent stem cells are a type of stem cell that have the ability to differentiate into many different types of cells, including blood cells. They are "pluripotent" because they can give rise to many different cell types, as opposed to more specialized stem cells, such as multipotent stem cells, which can only differentiate into a limited number of cell types.
Pluripotent stem cells are important because they have the potential to be used for regenerative medicine and to treat a wide range of diseases, such as blood disorders, cardiovascular disease, and neurodegenerative diseases. They can also be used to study early human development and to understand the underlying mechanisms of disease.
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autonomic reflexes enable the ans to control what kinds of visceral functions? check all that apply.
Answers
Given what we know about the Autonomic Nervous System we can confirm that autonomic reflexes enable the ANS to control functions such as heart rate, urination, and breathing rates.
These are among the many visceral functions that the Autonomic Nervous System controls. As per the pattern that is being established, we can conclude that the Autonomic Nervous System functions at a subconscious level, controlling the visceral functions that do not require conscious thought.
Despite this, some organs can also be controlled consciously, such as the lungs and bladder. Other visceral functions such as heart rate, digestion, and even ocular responses, are not able to be controlled consciously.
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A plant can continue on with photosynthesis if it loses all of its chlorophyll because it contains other pigments like carotenoids. True or False?
Answers
Answer:
It's false, without chlorophyll a plant can't produce food meaning no photosynthesis.
Answer:
false.
Explanation:
because if a plant doesn't have energy it will die
gland that secretes through ducts to the surface of an organ or tissue or into a vessel
Answers
Exocrine glands are those glands that secrete substances into vessels or to the surface of organs or tissues through ducts. Sweat glands, salivary glands, and the pancreas are a few exocrine gland examples.
What are hormones?Hormone, are naturally occurring molecule secreted by both plants and animals that controls physiological processes and sustains homeostasis. Hormones work by inducing responses in particular organs or tissues that have been developed to respond to very small amounts of them. According to the traditional theory of hormones, after leaving the glands that secrete them and entering the bloodstream, hormones go to their targets. Endocrine secretion is the term used to describe this method of release (direct bloodstream entry).
What are endocrine glands?The bodily tissues or organs known as endocrine glands secrete chemicals (hormones) into the blood. The hypothalamus, pineal, and adrenal glands are typical endocrine glands. To reach their intended destination, hormones are secreted directly into the bloodstream or into the intercellular space by endocrine glands.
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What does the oyster use to attach itself to a hard surface?
basal stalk
cement
Obyssal threads
O suction cups
Answers
The oyster uses cement to attach itself to a hard surface. Cement is used by oysters to adhere to a hard surface. Scallop, a unique type of adhesive cement secreted by oysters, hardens to produce a strong and long-lasting connection point.
A gland in the foot of the oyster produces cement which, once secreted, hardens quickly to form a solid bond between the oyster and the surface to which it is attached. This enables the oyster to maintain its position and prevents it from being moved by water currents or waves. Rocks, piers, and other oyster shells are some of the hard surfaces to which oysters can attach themselves.
Therefore, the correct option is B.
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