Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

What is the chromosomal basis of sex determination in humans?
Options
A XX in males, XY in females
B XX in females, XY in males
Correct Answer
C XO in males, XX in females
D XY in both sexes
Correct Answer

Option B is the correct answer.

Detailed Explanation

Humans have an XX-XY sex determination system. Females are homogametic (XX) and produce only X-bearing eggs. Males are heterogametic (XY) and produce both X-bearing and Y-bearing sperm.

Hint

The presence of a Y chromosome typically leads to male development.

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 894 of 2556
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