A buccal smear is a test of genetic sex, meaning it helps determine the individual's sex chromosomes (XX or XY). It involves collecting a sample of cells from the inside of the cheek, which are then analyzed under a microscope to identify the sex chromosomes. This test is often used in cases where there is uncertainty or confusion about an individual's biological sex.

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A Buccal Smear

Question 127

Multiple Choice

A Buccal smear

A) is a small,black dot appearing in the cells of genetic females.
B) indicates that the person in question is a male.
C) is a test of genetic sex.
D) is a test of hormonal sex.

Correct Answer: