What is the outcome of having only the head of the sperm entering the oocyte?
A) Genetic abnormalities are reduced by one -half.
B) Paternal lineage is more easily traced.
C) Flagella is free to move the fertilized egg to the uterus.
D) Mitochondrial DNA is only of maternal inheritance.
E) Genealogy lines become less conclusive.

Question

Quizplus · Accepted Answer

During fertilization, only the head of the sperm, which contains the father's DNA, enters the oocyte (egg cell). The sperm's mitochondria, located in the midpiece, are left outside, which means all the mitochondria in the embryo (and thus in the adult) come from the egg. Therefore, mitochondrial DNA (mtDNA) is inherited solely from the mother.

What Is the Outcome of Having Only the Head of the Sperm