|
Which of the following are examples of genetic drift |
Founder effect and bottleneck effect |
|
A bottleneck is best described as |
a reduction in the size of an original population followed by an expansion in size as the surviving members reproduce |
|
which of the following statements is/are true about a non evolving population |
allele frequencies do not change over generations. and genotype frequencies do not change over time. |
|
The biological species concept defines a species |
on the basis of the ability to mate and produce fertile offspring |
|
Which of the following is not an example of adaptive evolution? |
founder effect mutation gene flow bottleneck *all choices are non-adaptive |
|
Which of the following conditions can lead to two populations becoming different species? |
Individuals in the two populations mate at different times. Individuals in the two populations have significant genetic differences from one another. A barrier to gene flow exists between the two populations. *All of the above can lead to speciation. |
|
The offspring produced between the mating of a tiger and a lion, a liger, which is unable to reproduce, is an example of which form of reproductive isolation? |
hybrid infertility |
|
The proportion of alleles present in a gene pool is called the __________ and is an important tool in measuring evolutionary changes. |
allele frequency |
|
Which of the following does not influence allele frequencies in a population? |
natural selection. mutation. genetic drift. the bottleneck effect *All of the above influence allele frequencies in a population. |
|
In addition to the beak differences, which of the following indicates the finches found in the Galápagos Islands have experienced speciation? |
They can no longer interbreed. |
|
In a population of 75 mice, what would be the size of their gene pool for a particular gene? |
150 |
|
The collection of _______ in a population constitutes that population’s gene pool. |
alleles |
|
You examine a population and note that its allele frequencies for a particular gene are p = 0.55 and q = 0.45. If you come back and examine the population after several generations and found that the values for p and q have not changed, which of the following statements is FALSE for this gene? |
The population is evolving. |
|
Which of the following situations would represent a situation that reduces the effect of genetic drift? |
The population is very large. |
Share This
Flashcard
