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

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

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

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

C, B, A, humans

1 answer

To construct the cladogram based on the given DNA similarities, we look at the percentages of DNA shared between the organisms and humans.

  • Organism C shares 90% of its DNA with humans, making it the most closely related.
  • Organism A shares 85%, making it next in line.
  • Organism B shares 80%, making it the least closely related.

Therefore, the order from least related to most related should be:

B, A, C, humans

So, the correct response is:

B, A, C, humans.