Ask a New Question
Menu

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

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

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

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

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

1 answer

To arrange the organisms based on their genetic similarity to humans, we can look at the percentage of DNA they share with humans:

  • Organism A: 85%
  • Organism B: 80%
  • Organism C: 90%

The order from least related to most related based on these percentages is:

  1. Organism B (80%)
  2. Organism A (85%)
  3. Organism C (90%)
  4. Humans (100%)

So, the correct order for the cladogram from least related to most related is:

B, A, C, humans