What makes amino acids unique from one another?
a. the 'R' group
b. The amino group
c. The carboxyl group
d. The type of sugar molecule in the molecular backbone
Answers
Answer:
The type of sugar molecule in the molecular backbone
Related Questions
2.
PART B: Which TWO sentences from the article best support the answers to Part A?
"Fingerprints probably represent the best-known example of a feature
useful in biometrics." (Paragraph 5)
A.
B.
C.
D.
E.
F.
"Any feature of the body with a unique shape, size, texture or pattern ...
potentially can be used to identify someone." (Paragraph 5)
"It can be hard to get a good print from people who have worn down the
skin on their fingers after years of working with rough materials, such as
brick or stone." (Paragraph 32)
"Health officials tap into this file, using the fingerprint scanner, to
accurately identify which children still need vaccinating..." (Paragraph 40)
"Using biometrics to keep kids healthy, log onto electronic devices and
catch criminals are important applications." (Paragraph 42)
"We eventually want to use facial recognition in robots that can identify
who you are." (Paragraph 44)
Answers
Answer:
The best two sentences that support the answers to Part A are:
"Any feature of the body with a unique shape, size, texture or pattern potentially can be used to identify someone." (Paragraph 5)
This sentence supports the answer to Part A because it indicates that any unique feature of the body can be used for biometric identification, including features like the pattern of veins in the hand.
"It can be hard to get a good print from people who have worn down the skin on their fingers after years of working with rough materials, such as brick or stone." (Paragraph 32)
This sentence supports the answer to Part A because it explains that people who have worked with rough materials for many years may have worn down their fingerprints, making it more difficult to use fingerprints for biometric identification.
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Why are embryonic stem cells useful for medicine?
Answers
Answer:
Embryonic stem cells could be used to make more specialized tissues that have been lost to disease and injury. For tissues that are constantly replaced, like blood and skin, stem cells would probably be replaced directly. ... Embryonic stem cells could be grown into more specialized cells for screening potential drugs.
Explanation:
Answer:
This versatility allows embryonic stem cells to be used to regenerate or repair diseased tissue and organs.
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I don't know if it is the security guard but what I put if it is wrong please tell me the correct answer.
Answers
The correct option for the function of cell membrane is like "security guard".
Define cell membrane and its functions?All cells have a cell membrane, also known as a plasma membrane, which separates the cell's internal environment from the external environment.
A semipermeable lipid bilayer makes up the cell membrane. The movement of materials into and out of the cell is controlled mostly by cell membrane.A cell is protected by its cell membrane, also known as the plasma membrane. Additionally, it maintains a constant environment inside of the cell, but that membrane serves a variety of purposes. One is to move compounds out of the cell that are harmful as well as nutrients into the cell. Another is that there will be proteins on the cell's membrane, which is its plasma membrane, that interact with some other cells.Thus, the function of cell membrane is like security guard.
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Question 6 of 25
Which is an example of a vestigial structure?
A. Raccoon tail
B. Fish gills
C. Whale pelvis bone
D. Human arm
help:,)
Answers
the answer for your question is D
Joseph has hypothesized that sound travels in waves. If he were following the scientific method, what should he do next?
A.
Study the results.
B.
Ask a question.
C.
Tell other scientists about his hypothesis.
D.
Test the hypothesis.
Answers
Explain why DSB-repair homologous recombination can occur between any two DNA molecules that share homology rather than only between two DNA molecules that carry a specific sequence.
The double stranded break repair homologous recombination takes place between and two DNA molecules that share homology rather between two DNA molecules that carry a specific sequence.
During DSB-repair homologous recombination, the processes 3' ends will invade the unknown DNA duplex and bind complementary to one of the strands of the DNA duplex. This is possible only when there is homology between the two DNA molecules.
If the two DNA molecules contain specific sequences, the strand invasion and repair DNA synthesis cannot take place properly. So, DSB-repair homologous recombination occurs between two homologous chromosomes.
Answers
DSB repair refers to the repair of double-strand DNA breaks. Any two DNA molecules that share homology can undergo repair homologous recombination.
This is due to the fact that it causes breaks in two strands and then either interchanges the segment or synthesizes the new strand to use another strand as a motif branching strand. If the two strands share homology, there may be DSB homologous rearrangement. The DNA segment should have been primed. This priming may be possible if we have a homologous sequence as well.
As a result, it is feasible in both cases, in both homologous and similar sequence segments. If not repaired quickly, these DSBs can cause cell death.
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Where can a person find horticultural training
Answers
Answer:
I
Explanation:
Dont know
a muscle cell in your body needs to produce myosin which is a protein. write all of the steps and organelles needed to produce myosin
Answers
The production of myosin, a protein used in muscle contraction, requires several steps and organelles. The process starts with the transcription of the myosin gene into messenger RNA (mRNA) in the nucleus.
The mRNA is then transported to the cytoplasm, where it is translated into a polypeptide chain on ribosomes. The polypeptide chain then undergoes several post-translational modifications, such as folding and the addition of specific chemical groups, in the endoplasmic reticulum and Golgi apparatus.
Finally, the myosin protein is transported to its final destination, the muscle cell, where it is integrated into the myofibrils responsible for muscle contraction. This process involves multiple organelles, including the nucleus, ribosomes, endoplasmic reticulum, Golgi apparatus, and cytoskeleton.
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Which observation or observations provide evidence that two populations are likely experiencing reproductive isolation and that there is little if any genetic exchange between them?.
Answers
Reproductive isolation is the separation of species populations on the basis of behavior, geography or time. According to the given information statement ii, i.e., one population breeds in late spring and one in late summer and statement iv, i.e., singing by male of first population than other ones shows evidence that two populations are likely experiencing reproductive isolation and genetic exchange.
What is genetic exchange?New genotype of species are formed through the process of genetic exchange.
Reproductive isolation for example, is in changes of bird song from different species of finch. Females of one species of finch are unable to recognize the bird song of males. This is a barrier that is pre-zygotic.
Another includes one population breeds in late spring and one in late summer and singing by male of first population than other.
Thus, the correct statements are ii and iv so the correct option will be D.
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During a high-energy athletic event, such as a sprint, most of the energy that is provided to the muscles comes from
glycolysis.
the electron transport chain.
the Krebs cycle.
fermentation
Answers
Answer: read explanation :>
Explanation: During high-energy athletic events like sprints, most of the energy for the muscles comes from glycolysis. This anaerobic pathway breaks down glucose into pyruvate, producing ATP. The Krebs cycle and electron transport chain are aerobic pathways used for lower-intensity activities, while fermentation is a less efficient anaerobic pathway used when oxygen is not available.
can someone help me pls
Answers
Answer:
D. rough endoplasmic reticulum
Explanation:
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What type of environmental change occurs when the sun warms and melts glaciers and polar ice caps?
A) Lack of food
B) Climate change
C) Increased predators
D) Pollution
Answers
Answer:
B) Climate Change
Hope this helps :)
Answer:
um B Climate change
Explanation:
how is dna in a prokaryote different from the dna in a eukaryote
Answers
Prokaryotic cells are distinct from eukaryotic cells because they are a more primitive type of cell while eukaryotic cells are complex cells with clearly defined organelles.
The DNA of eukaryotes found in the nucleus of the cell , also the other organelles like chloroplast and mitochondria also have nucleus.where as the DNA of prokaryotes are present in cytoplasm and not found inside the organelles.The DNA of eukaryotes are linear with two ends where as the DNA of prokaryotes are circular.The DNA of eukaryotes contains more than one genome where as the DNA of prokaryotes contain only one genome.The DNA of eukaryotes organized into many chromosomes while the DNA of prokaryotes organized into only one chromosomes.The DNA of eukaryotes are packed into histones while the DNA of prokaryotes are not packed into histones.The DNA replication in eukaryotes is slow while the DNA replication in prokaryotes is rapid There is DNA of eukaryotes are different from the DNA of prokaryotes because of complexity of organism.
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What type of molecule is represented by the model below?
Carbohydrate
Steroid
Fat
Nucleic Acid
Answers
Answer:
Nucleic Acid
Explanation:
a wave of chemical reaction and electrical activity transmitted between noureons is called a_______
Answers
The wave of chemical reaction and electrical activity transmitted between neurons is called a nerve impulse.
A nerve impulse is an electrical signal that transmits information between neurons, allowing for communication within the nervous system. The transmission of nerve impulses occurs when neurotransmitters release chemicals that bind to receptors on the receiving neuron, causing an electrical signal to be generated and propagated down the length of the neuron. The nerve impulse is essential to the proper functioning of the nervous system, allowing for the transmission of sensory information, the control of movement, and the regulation of bodily functions such as heart rate and breathing.
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How does this behavior affect survival of the elephant population?
Answers
It increases the chances the calf will live to reproduce. So, the correct option is (C).
Why is behavior important for animal survival?
Behaviors that help animals or their young survive increase the fitness of the animal. Animals with higher fitness have a better chance that their genes are passed on to the next generation. If these genes control behaviors that increase fitness, then the behaviors become more common across the species.
The four types of Animal Behavior are:
1. Instinct
2. Imprinting
3. Conditioning
4. Imitation
Innate behavior and learned behavior are the two main categories of animal behavior where behaviors that animals do spontaneously, such as reflexes or sucking, are called innate behaviors while behaviors that animals must learn over time, such as social interaction and feeding, are called learned behavior.
Thus, it increases the chances the calf will live to reproduce. So, the correct option is (C).
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Your question is incomplete, most probably the complete question is :
How does this behavior affect survival of the elephant population?
O A. It increases the chances that the adult elephants will find mates.
O B. It marks the territory so predators stay away from the elephants.
O C. It increases the chances the calf will live to reproduce.
OD. It communicates to the calf the best way to reproduce.
Explain how fitness can change the allele frequency of a population. PLZ no link
Answers
Answer:
Natural selection can cause microevolution (change in allele frequencies).
Explanation:
With fitness-increasing alleles becoming more common in the population.
Fitness can affect the survival and reproduction rates of individuals with different alleles, leading to differential contribution to the next generation and changes in the frequency of these alleles in the population.
What is fitness?Fitness is a measure of the reproductive success of an individual within a population. The fittest individuals are those that are most successful at passing their genes on to the next generation. When the environment changes, the selective pressures on a population also change. This can lead to changes in the relative fitness of different individuals, and thus changes in the allele frequencies of a population over time.
For example, if a population of birds lives on an island with small seeds, those birds with small beaks may be more fit than those with larger beaks. This is because they are better adapted to the environment and can more easily obtain food. Over time, the frequency of the small-beaked allele will increase in the population, while the frequency of the large-beaked allele will decrease.
Thus, fitness can drive changes in the allele frequency of a population over time by favoring those individuals with alleles that are better adapted to the environment.
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using the letter ‘A’ what is the genotype of an organism that is homozygous dominate?
a. AA
b. Aa
c. aa
d AaA
Answers
Homozygous goes to the letter Dominate goes to the upper case
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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cellular respiration review please help
Answers
5. Glycolysis is the process by which 1 molecule of glucose is split into 2 molecules to produce 2 molecules of pyruvate.
What are the functions of glycolysis?Glycolysis is the first step in breaking down glucose to provide energy for cellular metabolism. Glycolysis consists of an energy-demanding phase followed by an energy-releasing phase.
Glycolysis is a cytoplasmic pathway that breaks down glucose into two three-carbon compounds and produces energy. Glucose is captured by phosphorylation by the enzyme hexokinase.
Glycolysis involves the breakdown of sugar molecules to release the energy needed for cellular metabolism. It is found in the cytoplasm of the cell. The main purpose of glycolysis is to synthesize thousands of ATP molecules, which are used for various cellular metabolisms.
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the three main components of connective tissue are: a. collagen, elastin, and reticular fibers. b. alveoli, fibrous capsule, and secretory cells. c. ground substance, fibers, and cells. d. fibroblasts, chondroblasts, and osteoblasts.
Answers
The correct answer to this question is (c) ground substance, fibers, and cells. The three main components of connective tissue are the substances above.
Along with epithelial tissue, muscle tissue, and nerve tissue, connective tissue, often known as fibrous tissue, is one of the four main forms of animal tissue. It develops from the mesenchyme, which comes from the intermediate embryonic germ layer known as mesoderm. All over the body, including the neurological system, connective tissue covers the gaps between diverse tissues. Connective tissue makes up the three meninges, which are membranes that protect the brain and spinal cord.
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Using your knowledge of fatty acid biosynthesis, provide an explanation for the two experimental observations. A biochemist adds uniformly labeled [ 4Clacetyl-CoA to a soluble liver fraction, which yields palmitate uniformly labeledwith 14C.Which statement best explains this experimental observation?A. Acetyl-CoA carboxylase adds the IC label to unlabeled acetyl-CoA, producing malonyl-CoA that is labeled at C-3.B. The presence of excess [|4Clacetyl-CoA gives rise to a metabolic pool of malonyl-CoA labeled at C-1 and C-2.D. [14Clacetyl-CoA breaks down into [14C]bicarbonate, which forms the acyl chain one carbon atom at a time.C. Each condensation reaction adds a [l4Clacetyl-CoA molecule to the growing acyl chain.
Answers
The correct statement is C. Each condensation reaction adds a [l4Clacetyl-CoA molecule to the growing acyl chain.
In fatty acid biosynthesis, the enzyme acetyl-CoA carboxylase (ACC) uses energy from ATP and bicarbonate to add a carboxyl group to the acetyl-CoA molecule, producing malonyl-CoA which is labeled at C-3. The enzyme fatty acid synthase (FAS) then combines the labeled malonyl-CoA with the unlabeled acetyl-CoA in a series of condensation reactions to form the growing acyl chain. Each of these condensation reactions adds a [14Clacetyl-CoA molecule to the growing acyl chain, resulting in palmitate that is uniformly labeled with [14C.
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Which structure determines the traits that will be passed to offspring?.
Answers
Chromosome determines the traits that will be passed to offspring
what is meaning of hypertension
Answers
Hypertension refers to the blood pressure that occurs when the force of the blood against the artery walls is excessively high.
High blood pressure, collectively known as hypertension, is a condition that occurs when the force of the blood cells against the walls of the arteries is too high.Hypertension increases the risk of suffering cardiovascular diseases such as coronary diseases.Hypertension usually is associated with excessively high levels of sodium in the diet.In conclusion, hypertension refers to the blood pressure that occurs when the force of the blood against the artery walls is excessively high.
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The T allele codes for tall stems in pea plants and the tallele codes for short stems. Which of the
following are possible genotypes for the offspring from a cross of Tt x tt?
a TT and tt
b. Tt
C. TT and Tt
d. Tt and tt
Answers
Answer:
D Tt and tt
Explanation:
In one punnet square you will have Tyler in the other three will be tt
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what is the fundamental idea behind parsimony? group of answer choices the best phylogeny is the one that both explains the observed character data and posits the fewest evolutionary changes for a group of taxa. the best phylogeny is the one that posits the greatest number of evolutionary changes for a group of taxa. the computed number of morphological or molecular distances between taxa indicates their relatedness. morphological traits cannot be used to reconstruct phylogenetic history.
Answers
The fundamental idea behind parsimony is option A: the phylogeny that explains the observed character data and assumes the fewest evolutionary changes for a set of taxa is considered to be the best.
A key feature of phylogenetic inference is parsimony, which states that the branching pattern that requires the fewest number of evolutionary changes should be assumed to represent the phylogeny of a group of species. In other terms, it is a technique for building phylogenetic trees that aims to reduce the overall number of evolutionary changes necessary to account for a certain set of data.
Parsimony belongs to a group of character-based tree estimation techniques that infer one or more ideal phylogenetic trees for a group of taxa, typically a group of species or reproductively isolated populations of a single species, using a matrix of discrete phylogenetic characteristics and character states.
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Correct question:
What is the fundamental idea behind parsimony? group of answer choices
the best phylogeny is the one that both explains the observed character data and posits the fewest evolutionary changes for a group of taxa.
the best phylogeny is the one that posits the greatest number of evolutionary changes for a group of taxa.
the computed number of morphological or molecular distances between taxa indicates their relatedness.
morphological traits cannot be used to reconstruct phylogenetic history.
Please Help! Urgent!
While running in the Olympic marathon, a runner produces a lot of extra heat in their leg muscles and loses a lot of water by breathing and sweating.
Explain the processes in the body which prevent the runner
a) Overheating
b) Dehydrating
(each question is worth 5 marks, please keep this in mind whilst answering)
Answers
Overheating and dehydration during marathon can be prevented by wearing pre-cooling vests and drinking adequate amounts of fluids.
Dehydration is the excessive loss of water in the body. This can happen due to less intake of water, due to some disease or during heavy workouts. During workouts the body produces heat to burn the calories and therefore to cool down the body, water is released in the form of sweat.
Pre-cooling vests are the type of vests that can be wore some time before any physical activity. In these vests, there are various pockets present where ice packs can be stored. This delays the production of excessive heat in the body and sweating. The vests can be wore during warm-up but must be removed during excessive physical activities.
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Help plz this is so important
Answers
Answer:
First one is true. Second one is also true.
Explanation:
which revision uses a relative clause to combine the sentences? koalas are marsupials. they live in eucalyptus forests.
Answers
The fact is that the sentence states that koalas are marsupials but they are not any type of marsupials but they belong to the kind that lives in eucalyptus forests. Therefore, the information given by the relative clause is essential to identify these marsupials.
What are koalas ?The marsupial group of mammals, which includes koalas, give birth to offspring that are still developing. But because they are so distinctive from other marsupials, the Phascolarctidae family has been created for them.
Eating up to a kilogramme of eucalyptus leaves per day, koalas are able to survive. Given that most animals are poisoned by eucalyptus, this is quite remarkable. The caecum, an unique fiber-digesting organ, aids in the leaves' chemical detoxification.
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Tool use, amongst nonhuman primates, is an example of _____________, which is tied to learned, shared, and inherited behaviors
Answers
Tool use, among nonhuman primates, is an example of CULTURAL behaviors. Cultural inheritance indicates the transmission of information by teaching and learning.
Cultural inheritance indicates the transmission of information and behaviors by teaching and learning (instead of genes).
The use of tools by non-human primates such as, for example, chimpanzees, is an example of cultural behavior.
Cultural behaviors enable the inheritance and transmission of acquired variation by social learning and teaching (often from parents to offspring).
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Answer: Tool use, among nonhuman primates, is an example of CULTURAL behaviors. Cultural inheritance indicates the transmission of information by teaching and learning.Cultural inheritance indicates the transmission of information and behaviors by teaching and learning (instead of genes).The use of tools by non-human primates such as, for example, chimpanzees, is an example of cultural behavior.Cultural behaviors enable the inheritance and transmission of acquired variation by social learning and teaching (often from parents to offspring).
Explanation: