0
How does the variation in protein reflect changes in a species DNA?
Wiki User
∙ 10y ago
As new species evolve they build up differences in the DNA from related species, as a result of mutation and selection.
The role of DNA is to encode the structure of proteins. The DNA code defines the sequence of amino acids in each protein.
So if the sequence of bases in the DNA changes, the sequence of amino acids in the proteins can also change as a result.
If we compare closely related species there should be fewer differences in their DNA and so fewer differences in their proteins than between distantly related species.
By comparing amino acid sequences we can therefore estimate how closely or distantly related two species are to each other.
(see related links)
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is a major cause of variation within species?
Variation of a species can come about in many ways, but mutation is the major cause of variation in a species.
What is a variation that can help an organism survive?
A "variation" is a genetic feature expressed in some physical, physio chemical or behavioral manner by a living organism that is not present in the general population of the species to which that living organism belongs. If that variation advantages that animal as compared to others of that species then the likelihood is that that animal will breed more successfully, potentially passing on that variation to its offspring. Slowly variations accumulate and one species changes into a new species - this is called evolution.
Discuss briefly any two evidences in favor of biological evolution?
there is variation within the species the changes are not due to any other factor
Does sexual reproduction cause a narrow range or variation or a wide range of variation in species?
SIM=
How do the Grants data show that genetic variation is important in the survival of a species?
The Grants' work shows that variation within a species increases the likelihood of the species' adapting to and surviving environmental change.
What term describes changes that within species?
variation
How does variation within a species increases its chance to survive when the environment changes?
The differing traits provided by variation mean that at least some groups of the species may be better prepared to survive.
How does variation in a species help the species survive?
As each new generation is produced, genetic variation may be introduced into a population. The more genetic variation in a population, the more likely it is that some individuals might have traits that will be advantageous if the environment changes.
What are advantages of variation?
Advantage- On the species level, variation allows a population to maintain a healthy diversity, allowing it to cope with changing circumstances.Disadvantage- On the individual level, variation may lead to detrimental changes as well as neutral and beneficial changes.
How does genetic combination help a species to survive?
It causes diversity and variation amongst a population
What are specific examples of variation within a species?
Human species, as in the variation in height.
What is a major cause of variation within species?
Variation of a species can come about in many ways, but mutation is the major cause of variation in a species.
What is a variation that can help an organism survive?
A "variation" is a genetic feature expressed in some physical, physio chemical or behavioral manner by a living organism that is not present in the general population of the species to which that living organism belongs. If that variation advantages that animal as compared to others of that species then the likelihood is that that animal will breed more successfully, potentially passing on that variation to its offspring. Slowly variations accumulate and one species changes into a new species - this is called evolution.
Discuss briefly any two evidences in favor of biological evolution?
there is variation within the species the changes are not due to any other factor
Mutations are a source of what in a species?
Genetic variation, which can lead to evoloution, and then potentially a new species.
What causes variation within species?
Variation within species can be caused by genetic mutations, environmental factors, and interactions between genes and the environment. Genetic mutations are changes in the DNA sequence that can create new traits. Environmental factors, such as diet and climate, can also influence variation by selecting for certain traits over others.
What is variation among members of the same species called?
Intraspecific variation
