A cladogram shows the evolutionary relationship between humans, chimpanzees, and gorillas. The cladogram currently shows humans and chimpanzees with, a more recent common ancestor compared to gorillas. Which piece of evidence, if true, would most likely weaken this hypothesis? (1 point) Fossils of humans appear in deeper sedimentary rock layers compared to fossils of chimpanzees. The cells of the eye in embryos of gorillas and humans follow a similar pattern of development while chimpanzee embryos are different. Amino acid analysis of the cytochrome c protein shows significant differences in the sequence of amino acids between humans and DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla's DNA sequence.

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To determine which piece of evidence would most likely weaken the hypothesis that humans and chimpanzees share a more recent common ancestor compared to gorillas, we need to analyze each option provided:

1. **Fossils of humans appear in deeper sedimentary rock layers compared to fossils of chimpanzees.**
   - If human fossils are found in deeper layers, this suggests that humans may have existed earlier than chimpanzees. This could imply that humans and chimpanzees diverged from a common ancestor earlier than previously thought, potentially weakening the idea of a more recent common ancestor between humans and chimpanzees.

2. **The cells of the eye in embryos of gorillas and humans follow a similar pattern of development while chimpanzee embryos are different.**
   - This evidence suggests that gorillas and humans may be more closely related in terms of embryonic development. If gorillas and humans share a similar developmental pattern, it could indicate a closer evolutionary relationship, which would weaken the hypothesis that humans and chimpanzees are more closely related.

3. **Amino acid analysis of the cytochrome c protein shows significant differences in the sequence of amino acids between humans and gorillas.**
   - Significant differences in the amino acid sequence between humans and gorillas would suggest that they are less closely related, but it does not directly address the relationship between humans and chimpanzees.

4. **DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla's DNA sequence.**
   - This evidence supports the hypothesis that humans and chimpanzees are more closely related, as it shows that their DNA sequences are more similar compared to gorillas.

### Conclusion:
The piece of evidence that would most likely weaken the hypothesis that humans and chimpanzees share a more recent common ancestor compared to gorillas is:

**Fossils of humans appear in deeper sedimentary rock layers compared to fossils of chimpanzees.**

This suggests that humans may have diverged from a common ancestor earlier than chimpanzees, thus weakening the proposed relationship.
The evidence that most likely weakens the hypothesis is: **Fossils of humans appear in deeper sedimentary rock layers compared to fossils of chimpanzees.**

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