Common origin of man and chimpanzee is best shown by

Options

A. Cranial capacity
B. Binocular vision
C. Chromosomes
D. Dental formula

Explanation

**Step-by-Step Solution:**

1. **Understanding Common Ancestry**: The common origin of humans (Homo sapiens) and chimpanzees (Pan troglodytes) refers to the idea that both species share a common ancestor from which they evolved.

2. **Chromosomal Evidence**: One of the strongest pieces of evidence for this common ancestry comes from the study of chromosomes. Humans have 23 pairs of chromosomes, totaling 46 chromosomes, while chimpanzees have 24 pairs, totaling 48 chromosomes.

3. **Comparison of Chromosomes**: The similarity in the number and structure of chromosomes between humans and chimpanzees indicates that they share a recent common ancestor. The difference in chromosome number can be attributed to a fusion event in human evolution where two ancestral chromosomes fused to form one.

4. **Genetic Similarity**: In addition to chromosomal evidence, genetic studies show that humans and chimpanzees share approximately 98-99% of their DNA. This high degree of genetic similarity further supports the idea of a common origin.

5. **Conclusion**: Therefore, the common origin of man and chimpanzee is best shown by the chromosomal similarities and genetic evidence that highlight their evolutionary relationship.