A sophisticated procedure where one sperm is injected into an egg is used in cases where a man has severe infertility problems. What is this procedure called?

A) artificial insemination
B) vasectomy
C) cloning
D) surrogate mothering
E) intracytoplasmic sperm injection

The procedure described in the question is called intracytoplasmic sperm injection (ICSI). It involves injecting a single sperm directly into an egg using a tiny needle. This is typically used in cases where a man has low sperm count or poor sperm quality, and traditional methods of fertilization may not be successful. Artificial insemination involves placing semen into a woman's reproductive tract, but does not involve injecting a single sperm into an egg. Vasectomy involves cutting or blocking the vas deferens to prevent sperm from reaching the semen. Cloning involves creating an identical genetic copy of an organism. Surrogate mothering involves carrying a pregnancy for another person or couple.