Explanation: Humans and most other mammals have two sex chromosomes, the X and the Y. Females have two X chromosomes in the re cells, while males have both X and a Y chromosomes in their cells. Egg cells all contain an X or Y chromosomes
Humans and most other mammals have two sex chromosomes, the X and the Y. Females have two X chromosomes in their cells, while males have both X and a Y chromosomes in their cells. Egg cells all contain an X chromosome, while sperm cells contain an X or Y chromosome.
