Seventy to ninety percent of the genetic material in a gamete made in your body could be inherited from your mother. How could this be?
a) The X chromosome is substantially larger than the Y chromosome.
b) Your maternal genes kill off your paternal genes at a greater rate than your paternal genes kill of your maternal genes.
c) You receive many mitochondria, which have their own genome, from your mother, but not from your father.
d) The maternal genes contain more dominant genes so they are expressed at least seventy percent of the time.
e) The above statement is incorrect. Fifty percent of the genetic material in your gametes comes from your father.
Answer: You receive many mitochondria, which have their own genome, from your mother, but not from your father.