Respuesta :
The Y chromosome
Explanation:
- The Y chromosome is one of the two sex chromosomes in humans (the other is the X chromosome)
- The sex chromosomes form one of the 23 pairs of human chromosomes in each cell
- The Y chromosome spans more than 59 million building blocks of DNA (base pairs) and represents almost 2 percent of the total DNA in cells
- Each person normally has one pair of sex chromosomes in each cell
- The Y chromosome is present in males, who have one X and one Y chromosome, while females have two X chromosome
- The Y chromosome is much smaller than the X chromosome and likely contains 50 to 60 genes that provide instructions for making proteins
- Only males have the Y chromosome, the genes on this chromosome tend to be involved in male sex determination and development hence unlikely to contain any of the genes that are absolutely necessary for survival
- Sex is determined by the SRY gene, which is responsible for the development of a fetus into a male
