DP Biology (first assessment 2025)

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Question 22M.1A.HL.TZ1.37

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1A.HL.TZ1.37
Level HL Paper 1A Time zone TZ1
Command term Question number 37 Adapted from N/A
37.
[Maximum mark: 1]
22M.1A.HL.TZ1.37

Which mechanism prevents polyspermy?

A. Polar body formation

B. The acrosome reaction

C. Spermatogenesis

D. The cortical reaction

[1]

Markscheme

D

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