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How does population size and mutations affect the rate of evolution?
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Does the amount of chromosomes in a species affect its rate of evolution?
The "rate" of evolution is most accurately gauged in terms of divergence between genetic sequences. Chromosomes are basically groupings of such sequences. It is certainly possible that the number and order of these groupings affect future developments (for instance: polyploidy and chromosomal fusions can affect speciation events), but they do little to affect the overall "rate" of divergence.
What effect does generation time have on evolution rate?
A long generation time makes for a slow evolution rate, and a short generation time makes for a fast evolution rate.
What is the rate of evolution?
Evolution doesn't have a constant rate because it depends on environmental factors and reproduction frequency.
Mutagenic agents are substances that?
Increase the rate of gene mutations
Why are only neutral mutations useful for molecular clocks?
Only neutral mutations are useful for molecular clocks because they accumulate in the DNA of different species at the same rate, while other mutations do not.
How can mutation rate affect the evolution of a population?
1. The mutation rates affect the evolution of the population by two factors. Firstly, every new mutation overcomes the effects of survival. When new mutations exist in one or two individuals, they are often lost from the population due to genetic drift, or change. For example, the mutation may never make it to a gamete and may get lost. Secondly, the selective value of the mutation can determine its affect of the population. If it's harmful then the selection would act to reduce its frequency and eventually remove it.
How do mutations natural selection geographic isolation genetic drift and migration contribute to biological evolution?
they contribute to biological evolution by how they've affected the evolution rate by increasing it or decreasing it
What can affect the human population size?
birth rate & death rate,fertility rate.
How do birth rate and death rate affect a country's population?
If the birth rate is higher than the death rate, the population increases. If the death rate is higher than the birth rate, the population decreases.
What is the definition for rapid evolution?
Rapid evolution is where the subjective species in a population is considered to be evolving in an unusually high frequency and rate, thus 'rapid' evolution is occuring.
Does the amount of chromosomes in a species affect its rate of evolution?
The "rate" of evolution is most accurately gauged in terms of divergence between genetic sequences. Chromosomes are basically groupings of such sequences. It is certainly possible that the number and order of these groupings affect future developments (for instance: polyploidy and chromosomal fusions can affect speciation events), but they do little to affect the overall "rate" of divergence.
How birth rate and death rate affect on population size?
The birth rate affects the size of population because of what its like. And the death rate is more than you can imagine.
What are the factors that affect a population's size size?
the factor are Death Rate Birth Rate Immigration
What factors do you think affect your country's population growth in cuba?
death rate birth rate
4 factors that affect the growth rate of a population?
availabilty of resources. death rate. space.
How can reproductive behavior of individuals affect the growth rate of a population?
blah
What are three main ways that variations in genotype arise in a population?
Variations occur due to mutations. There are three factors of mutations which impact the formation of new genotypes. 1) Point Mutations - Very small impact mutation which still might enhance the protection against environment and reproduction. 2) Mutations that alter Gene number and sequence - has major role in evolution as it might help to add new functions. 3) Mutation Rates - In animals and plants mostly very slow, however, prokaryotes due to high rate are able to mutate very fast.
