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3.1 Reproduction and meiosis

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Question 28
H

A student uses this model for sexual reproduction in an animal:

Diploid adult cells produce gametes without reducing chromosome number. Two gametes then fuse. The offspring repeat the same process.

Starting with adults whose diploid cells contain 12 chromosomes, how many chromosomes would a zygote contain after two successive generations in this model?

[1]
A

48 chromosomes

B

12 chromosomes

C

24 chromosomes

D

96 chromosomes

Markscheme

3.1 Reproduction and meiosis Questions

  1. GCSE
  2. /Biology
  3. /3.1 Reproduction and meiosis

40 exam-style questions on Edexcel GCSE Biology 3.1 Reproduction and meiosis, covering 3.1.1 Advantages and disadvantages of reproduction and 3.1.2 Role of meiotic cell division. Each one has a worked solution and a mark scheme showing where the marks go.

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