A tree of life depicting the hypothetical phylogeny of the three domains is shown above. A star is placed at the common ancestor

Question

2 years ago

6

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

Biology

2 answers:

LenKa [72] · Answer 1 · 2022-11-19T05:25:58+03:00

LenKa [72]2 years ago

6 0

Answer: A

Explanation: linear chromosomes with introns

love history [14] · Answer 2 · 2022-11-19T03:41:22+03:00

love history [14]2 years ago

3 0

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.