A scientist is attempting to build a cladogram that shows the evolutionary closeness of three organisms in relation to humans. After doing DNA analysis, they determine that the organisms share the following percentages of DNA:

Question

Organism A and humans share 85% of their DNA.

Organism B and humans share 80% of their DNA.

Organism C and humans share 90% of their DNA.

Based on this information, which order should they go on the cladogram (from least related to most related)?

(1 point)

a. A, B, C, humans

b. C, B, A, humans

c. B, A, C, humans

d. C, A, B, humans

Answer 1

The correct order for the cladogram based on the DNA percentages is:

c. B, A, C, humans

This order represents the evolutionary closeness of the organisms to humans, with Organism B being the least related and Organism C being the most related.