The Presence of Similar DNA Sequences in Sharks, Whales and Humans

question 90

Multiple Choice

The presence of similar DNA sequences in sharks, whales and humans, but not in chimpanzees suggests?

• A) the DNA codes for a protein
• B) that humans are derived from chimpanzees
• C) the DNA was gained in elephants, mice and humans, but not chimpanzees .
• D) the DNA was lost in chimpanzees
• E) none of these hypotheses is supported by this observation

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