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Question 5

Animal A and Animal B each have 95% of their DNA in common. Animal A and Animal C each have 50% of their DNA in common. How does this data support the hypothesis that life changed over time?

They all share at least 50% of the same DNA arrangement.

They all share a series of closely related fossils.

They all share similar embryo development.

They all share similar migration patterns.

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2 Answers

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Answer:

The correct answer is "They all share at least 50% of the same DNA arrangement".

Step-by-step explanation:

DNA analysis have allowed to establish phylogenetic trees with reliable information about the evolutionary relationship that species have. In this example Animal A and Animal B share 95% of their DNA sequences, while Animal A and Animal C share 50%. Even though Animal B and Animal C relationship is not established, it is sure to state that all animals share at least 50% of the same DNA arrangement since Animal A and Animal B are almost identical. This support the idea that life changed over time, where it is likely that all animals share a common ancestor that eventually diverged in the three animals at which Animal C is the most divergent.

User Ahmad Ronagh
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They all share at least 50% of the same DNA arrangement. It is correct because i just took the quiz and answered like 1 minute and 26 seconds ago.
User Muhive
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