A scientist is trying to determine the relationship between clams, snails, and squid. When she generates a molecular clock, she is surprised to see that clams and squid are more closely related than clams and snails. Which did the molecular clock data show? Clams and squid have been evolving separately for a longer time than clams and snails. Clams and squid have been evolving separately for a shorter time than clams and snails. Clams and snails have more in common genetically than clams and squid. Clams and snails are more similar in related structures than clams and squids.
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The correct answer is -Clams and snails are more similar in related structures than clams and squids.
Reason for the answer: A molecular clock
is a hypothesiss that predicts a constant rate of molecular evolution among species. It is also a method of genetic analysis that can be used to estimate evolutionary rates and timescales using data from DNA or proteins.
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