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A tree of life depicting the hypothetical phylogeny of the three domains is shown above. A star is placed at the common ancestor of all eukaryotes. Which characteristic would a common ancestor located
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A tree of life depicting the hypothetical phylogeny of the three domains is shown above. A star is placed at the common ancestor of all eukaryotes. Which characteristic would a common ancestor located at the star contain?

(See picture)

CHOICES: A- linear chromosomes with introns
B- circular chromosomes with introns
C- linear chromosomes lacking introns
D- circular chromosomes lacking introns

A tree of life depicting the hypothetical phylogeny of the three domains is shown-example-1
User Nwalton
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2 Answers

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Answer: A

Explanation: linear chromosomes with introns

User Akash Mishra
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1 vote
Answer: C. Linear chromosomes lacking introns

Explanation: Eukaryotes have linear chromosomes. After cellular replication, introns are spliced in eukaryotes and only keep the exons. This process also includes a 5’ cap and a poly-A tail.
User Armon
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