Question Detail

BIO 201 Objective Question
Take CBT

Question

Unlike ABO antibodies, when do Anti-Rh (Anti-D) antibodies appear in an Rh-negative individual?
Options
A At birth automatically
B Only after exposure to Rh-positive blood
Correct Answer
C During early embryonic gastrulation
D They are present continuously from infancy
Correct Answer

Option B is the correct answer.

Detailed Explanation

Anti-Rh antibodies are not naturally occurring; sensitization requires prior Rh+ blood exposure.

Hint

No hint available

Question Info

Course: BIO 201
Type: Objective
Difficulty: Not specified
Question 176 of 285
Previous Course Details Next