Question

Q9: Human females can pass on either one of the their two X chromosomes to an offspring, but a dad

can pass on either an X chromosome or a Y chromosome. So does a child really inherit 50% of all their
DNA from mom and 50% from dad? Explain:

Answer 1

yes a child inherits 50% of their DNA from mom and 50% from dad

Step-by-step explanation:

Males are heterogametic as they produce two types of gametes one carrying an X and the other carrying Y chromosome. Females are homogametic because they produce one type of gamete carrying the X chromosomes. The chromosomes are inherited equally in the mendelian fashion. Genes on the chromosomes are therefore inherited equally with 50% coming from the mother and 50% coming from the father.