how many sex chromosomes are present in an unfertilized egg in humans
How many sex chromosomes are present in an unfertilized egg in humans?
The unfertilized egg, or oocyte, in humans contains one pair of sex chromosomes. Typically, females have two X chromosomes (XX) while males have one X and one Y chromosome (XY). In an unfertilized egg, the sex chromosomes are in an inactive state.
During fertilization, if the sperm carrying an X chromosome fertilizes the egg, the resulting embryo will have two X chromosomes and develop into a female. On the other hand, if the sperm carrying a Y chromosome fertilizes the egg, the resulting embryo will have one X and one Y chromosome, and develop into a male.
It’s important to note that the presence of sex chromosomes determines the biological sex of an individual. However, sex is a complex biological trait influenced by various genetic and environmental factors.