1 point Which of the following is TRUE regarding the human genome? There are 3 billion base pairs of DNA per diploid cell, A human cell nucleus contains 22 pairs of autosomes, a pair of sex chromosomes, and mitochondrial DNA. The X chromosome is a fusion in humans, but separate in other primates. The chromosomes were originally numbered according to size (from smallest to largest). There are thousands of mitochondria per cell, each containing multiple copies of their genome. 1 point Regarding the X and Y chromosomes, both evolved from a common ancestor 10 million years ago. males have X inactivation in each cell. the SRY protein is the male specific transcription factor. in males, the Y chromosome recombines with X chromosome during mitosis. genetic mutations that boost an individual's adaptability have greater chances of getting through via Y chromosomes, as men are "testing grounds" for new mutations..