Final answer:
The statement that humans share more than 98% of their genes with chimpanzees is true, demonstrating the close genetic relationship and common ancestry between the two species.
Step-by-step explanation:
Humans indeed share more than 98% of their genes with chimpanzees, so the correct answer is a) true. This high degree of genetic similarity indicates that humans and chimpanzees share a common ancestor, underlining our close relationship within the tree of life. While we have developed distinct characteristics and capabilities, the underlying genetic code remains remarkably similar.
Genetic and behavioral similarities extend beyond humans and chimpanzees to other members of the Hominidae family, such as gorillas and orangutans. Genetic analyses have shown that all members of this family share a high percentage of their DNA, reflecting a close evolutionary relationship. Despite the similarities, each species has developed unique traits; for example, humans have a less protruding jaw compared to chimpanzees, among other physiological differences.
In terms of evolutionary history, chimpanzees and humans evolved from a common ancestor, rather than one species evolving directly from the other. This is supported by numerous scientific studies involving the comparison of genetic material across different species.