AP BIOLOGY

EVOLUTION

EVIDENCE FOR EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
True or False:Species are more closely related if they have a more recent common ancestor.
A
True
B
False
Explanation: 

Detailed explanation-1: -In a phylogenetic tree, the relatedness of two species has a very specific meaning. 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-2: -DNA evidence for evolution Biologists often compare the sequences of related (or homologous) genes. If two species have the “same” gene, it is because they inherited it from a common ancestor. In general, the more DNA differences in homologous genes between two species, the more distantly the species are related.

Detailed explanation-3: -Overwhelming evidence shows us that all species are related–that is, that they are all descended from a common ancestor. More than 150 years ago, Darwin saw evidence of these relationships in striking anatomical similarities between diverse species, both living and extinct.

Detailed explanation-4: -Species that are very closely related have very similar DNA with only minor differences. They are related through a common ancestor.

Detailed explanation-5: -Answer and Explanation: The correct answer is (D) Primates and Rodents/Rabbits.

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