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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:

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)
Responses

C, B, A, humans
C, B, A, humans

A, B, C, humans
A, B, C, humans

B, A, C, humans
B, A, C, humans

C, A, B, humans
C, A, B, humans

1 answer

Based on the percentages of DNA shared with humans, the organisms should be ordered from least related to most related as follows:

  1. Organism B: 80% shared DNA with humans
  2. Organism A: 85% shared DNA with humans
  3. Organism C: 90% shared DNA with humans

Thus, the correct order for the cladogram would be:

B, A, C, humans.