Question

Which of these provides evidence from developmental biology of a shared evolutionary history?
A. The skeletal structures of a leg of a horse and a flipper of a whale are very similar.
B. Both snakes and dogs have pelvic bones even though they are vestigial structures in the snake.
C. Both lobsters and frogs go through metamorphosis as a process in their life cycle.
D. The DNA sequences of the cytochrome c genes in chimpanzees and spider monkeys are over 90% identical.

Answer 1

Answer: D. The DNA sequences for the cytochrome c genes in chimpanzees and spider monkeys are over 90%  identical.

Cytochrome c gene encodes for a protein that is very common among primates. This gene does not have undergone much changes during the process of evolution. Cytochrome c is a respiratory pigment found in the mitochondria of eukaryotes.

Answer 2

Answer:D

Explanation: