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IB Biology SL D3.1.6 Fertilization in Humans Questions

Identify the nuclear changes when sperm reaches and enters the egg, then explain how fusion forms the diploid zygote genome in IB Biology SL D3.1.6.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • State that sperm reaches and enters the egg and that sperm and egg nuclear membranes fuse to form the zygote genome.

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Study D3.1.6—Fertilization in humans conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology SL D3.1.6 Fertilization in Humans Questions question 1

[Maximum number: 1]

What happens during fertilization in humans?

A

The nuclear membranes of sperm and egg break down.

B

The sperm enters the egg.

C

The chromosomes undergo joint meiosis.

D

Mitochondria in the zygote come from sperm and egg.

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