Question

question 7
which of the following best describes the source of yqur mitochondrial dna?
half of my mitochondrial dna was inherited from my mother and half from my father.
all of my mitochondrial dna was inherited from my father.
all of my mitochondrial dna was inherited from my mother.
seventy - five percent of my mitochondrial dna was inherited from my mother and 25 percent was inherited from my father.

Explanation:

Mitochondrial DNA (mtDNA) is passed down maternally. Sperm cells contribute very little or no mtDNA to the zygote during fertilization. The egg cell contains mitochondria and thus donates mtDNA to the offspring.

Answer:

All of my mitochondrial DNA was inherited from my mother.