Semen analysis is a common diagnostic procedure related to infertility.
In instructing a male patient regarding this test, the nurse would tell him to:

Choice A rationale

Dominant genetic diseases are not limited by sex; both males and females have an equal chance of inheriting and expressing the disease if they receive the dominant allele. Therefore, stating that only boys get dominant diseases is scientifically incorrect and does not reflect the principles of Mendelian inheritance for dominant traits.

Choice B rationale

Huntington's chorea is an autosomal dominant disorder. For a child to inherit an autosomal dominant disorder, at least one parent must have the affected gene. Since neither the woman nor her husband have or carry the gene for Huntington's chorea, their child cannot inherit the disease. This negates any 50% chance.

Choice C rationale

Huntington's chorea is an autosomal dominant disorder, meaning only one copy of the affected gene is needed for the disease to manifest. Since the pregnant woman and her husband do not have or carry the gene for Huntington's chorea, there is no possibility for them to pass the gene on to their child. The child will therefore not inherit the disease.

Choice D rationale

For an autosomal dominant disorder like Huntington's chorea, if a person does not have the gene, they cannot be a carrier in the traditional sense of recessive disorders. Carrying implies having a recessive gene without expressing it. Since the parents do not have the gene, the child cannot be affected through parental inheritance.

Choice A rationale

Removing eggs for fertilization in the laboratory is a defining characteristic of in vitro fertilization (IVF), not artificial insemination (AI) or intrauterine insemination (IUI). IVF involves a more complex process of external fertilization. This choice describes a different assisted reproductive technology.

Choice B rationale

Assessing the genetic material of the embryo, known as preimplantation genetic testing (PGT), is a procedure performed in conjunction with IVF, not a component of artificial insemination. PGT is used to screen embryos for chromosomal abnormalities or specific genetic disorders before uterine transfer.

Choice C rationale

Putting dye in the uterus to visualize the fallopian tubes describes a hysterosalpingography (HSG), a diagnostic procedure used to assess tubal patency and uterine cavity abnormalities. While HSG may be part of an infertility workup, it is not part of the artificial insemination procedure itself.

Choice D rationale

Artificial insemination (AI) or intrauterine insemination (IUI) involves the direct placement of prepared sperm, either from the partner or a donor, into the woman's uterus, bypassing the cervix. This procedure aims to increase the concentration of motile sperm reaching the fallopian tubes, thereby increasing the likelihood of fertilization.