Brittany's family includes several individuals with a genetic disorder that affects primarily males. Her husband Tony has no history of the disease. They have decided that their best chance to have a healthy family is to have only daughters. Through a new type of assisted reproductive technology, it is possible to separate sperm that will produce sons from those that will produce daughters. Brittany's eggs will be fertilized by in vitro fertilization (IVF) with sperm that can produce only daughters. The developing female embryo can be implanted into her uterus to complete development normally.
-The daughter-producing sperm used to fertilize Brittany's eggs should be
A) diploid primary spermatocytes.
B) haploid secondary spermatocytes.
C) haploid sperm cells.
D) diploid sperm cells.

Question

Quizplus · Accepted Answer

The daughter-producing sperm used in this technology would be haploid sperm cells, as only the male sex chromosome (either X or Y) would be present in the sperm, and the sperm selected would only contain the X chromosome, which would result in the development of a female embryo. Diploid primary spermatocytes would not be used, as these are the cells that undergo meiosis to produce haploid secondary spermatocytes, which then mature into sperm cells. Diploid sperm cells do not exist, as mature sperm cells are haploid.

Brittany's Family Includes Several Individuals with a Genetic Disorder That