If Only a Small Volume of Sperm Is Discharged into the Vagina,an

question 12

Multiple Choice

If only a small volume of sperm is discharged into the vagina,an insufficient amount of enzymes might be released when they encounter the ovum.In that case,pregnancy would probably not result,because:

• A)Peristalsis of the fallopian tube would decrease,making it difficult for the ovum to enter the uterus.
• B)The block to polyspermy (cortical reaction)would not occur.
• C)The fertilized ovum would be unable to implant in the uterus.
• D)Sperm would be unable to penetrate the zona pellucida of the ovum.

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Definitions:

Klinefelter Syndrome

A chromosomal disorder found among males that is caused by an extra X sex chromosome and is characterized by infertility and mild intellectual disability.

Phenotype

The actual form, or constitution, of a person as determined by heredity and environmental factors.

Heredity

The passing of traits from parents to offspring through genes.

Pelvic Inflammatory Disease

An infection of the female reproductive organs, often caused by sexually transmitted infections, leading to severe health complications including infertility.