Botany-Sex Determination
NEET Botany Sex Determination MCQ Question
Type: MCQ-diagram based-Hard-Class 12
A diagram depicts the XO type of sex determination mechanism in grasshoppers. The diagram labels two types of sperm cells — one with an X chromosome and one without. Which process results in a male grasshopper?
A
An egg fertilized by a sperm cell lacking an X chromosome
B
An egg fertilized by a sperm cell containing an X chromosome
C
An egg fertilized by a sperm cell containing two X chromosomes
D
An egg fertilized by a sperm cell without autosomes
Correct Answer
Option A
Detailed Explanation
In the XO type of sex determination, as described in the NCERT text, males result when eggs are fertilized by sperm that do not carry an X chromosome.
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