Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart when they are fertile. This kind of isolation is most similar to which of the following reproductive isolating mechanisms?

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#Question id: 3288

#Section 2: Evolution

Migration causes changes in the allelic frequency of a population by introducing alleles from other populations. The magnitude of change due to migration depends on

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#Question id: 3289

#Section 2: Evolution

If, someday, an archaean cell is discovered whose SSU-rRNA sequence is more similar to that of humans than the sequence of mouse SSU-rRNA is to that of humans, the best explanation for this apparent discrepancy would be

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#Question id: 3291

#Section 2: Evolution

Which of the following is the most predictable outcome of increased gene flow between two populations?

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#Question id: 3292

#Section 2: Evolution

Which of the following is correct observation?

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#Question id: 3293

#Section 2: Evolution

In a Hardy-Weinberg population of butterflies find that 32% are heterozygous at a particular locus. What should be the frequency of the homozygous individuals in this population?

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#Question id: 3294

#Section 2: Evolution

Which one of these processes describes bottleneck effect?