EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The two species have different developmental patterns
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The two species have similar arms and legs
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The two species share DNA sequences
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The ancestors of each species looked very different
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Detailed explanation-1: -So, the correct answer is ‘The more their DNA sequences will match’
Detailed explanation-2: -Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used to determine species’ relatedness.
Detailed explanation-3: -Common descent is an effect of speciation, in which multiple species derive from a single ancestral population. The more recent the ancestral population two species have in common, the more closely are they related.
Detailed explanation-4: -The pattern of branching in a phylogenetic tree reflects how species or other groups evolved from a series of common ancestors. In trees, two species are more related if they have a more recent common ancestor and less related if they have a less recent common ancestor.
Detailed explanation-5: -That’s because closely related species most likely diverged from one another fairly recently in the evolutionary span. Thus, they haven’t had as much time to accumulate random mutations in their genetic codes.