Question

a person who has an ovum with a single x chromosome that is fertilized with a sperm that lacks a sex chromosome results in...

superfemale

supermale

turners syndrome

downs syndrome

Explanation:

To solve this, we analyze each option:

• Superfemale: Typically has extra X chromosomes (e.g., XXX), not a single X with no Y or other sex chromosome from sperm.
• Supermale: Usually has extra Y chromosomes (e.g., XYY), which is not the case here.
• Turner’s Syndrome: Occurs when a female has a single X chromosome (XO), resulting from an ovum with X and a sperm with no sex chromosome (so fertilized egg is XO).
• Down’s Syndrome: Caused by an extra copy of chromosome 21, not related to sex chromosomes.

So the correct option is Turner’s Syndrome.

Answer:

C. Turner's Syndrome