With Respect to Mitochondrial Inheritance, Which, If Any, of the Following

Short Answer

With respect to mitochondrial inheritance, which, if any, of the following statements is false?
a) Affected individuals can be of either sex.
b) Mitochondrial disorders are transmitted virtually exclusively through the maternal line.
c) Both the sperm and the egg contribute mitochondrial DNA to the zygote.
d) Clinical variability is a common feature of mitochondrial DNA disorders.