Quick Answer: What type of chromosomal rearrangement is responsible for the difference in chromosome number between humans and chimpanzees?

Which type of chromosome rearrangement explains why humans have one less chromosome than other great apes?

In particular, it explains that humans have one fewer chromosome pair in their cells than apes, due to a mutation found in chromosome number 2 that caused two chromosomes to fuse into one. …

What is the chromosome difference between humans and monkeys?

Humans have 46 chromosomes, whereas chimpanzee, gorilla, and orangutan have 48. This major karyotypic difference was caused by the fusion of two ancestral chromosomes to form human chromosome 2 and subsequent inactivation of one of the two original centromeres (Yunis and Prakash 1982).

What genomic information distinguishes a human from a chimpanzee?

Human karyotype is represented by 46 chromosomes, whereas chimpanzees have 48 chromosomes [9]. In general, both karyotypes are very similar. However, there is a major difference corresponding to the human chromosome 2.

What type of chromosomal rearrangement is responsible for the difference in chromosome number between humans and chimpanzees?

Large-scale rearrangements

Cytogenetic studies have shown that human and chimpanzee chromosomes differ by one chromosomal fusion, at least nine pericentric inversions, and in the content of constitutive heterochromatin84.

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How much DNA do we share with monkeys?

Humans and chimps share a surprising 98.8 percent of their DNA.

What was the first trait to set us apart from the apes and makes us human?

Today, we look at the most fundamental human characteristic: walking upright. Walking upright on two legs is the trait that defines the hominid lineage: Bipedalism separated the first hominids from the rest of the four-legged apes.