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5.1 Inheritance

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Question 28

The diploid number of chromosomes in goats is 60. Sex in goats is determined in the same way as in humans.

Which of the following is a possible chromosome combination in a sperm cell of a male goat?

A

$chromosomes+Y28\text{ chromosomes} + \text{Y}$

B

$chromosomes+X29\text{ chromosomes} + \text{X}$

C

$chromosomes+XY58\text{ chromosomes} + \text{XY}$

D

$chromosomes+XY60\text{ chromosomes} + \text{XY}$

Markscheme

5.1 Inheritance Questions

GCSE
Biology
5.1 Inheritance

97 exam-style questions on OCR GCSE Biology 5.1 Inheritance, covering 5.1.1 The genome, 5.1.2 Environment and phenotype, 5.1.3 Variants and mutations, 5.1.4 How genetic variants influence phenotype, 5.1.5 Asexual and sexual reproduction, 5.1.6 Haploid and diploid, 5.1.7 Meiotic cell division, 5.1.8 Single gene inheritance, 5.1.9 Predicting single gene crosses, 5.1.10 Sex determination, 5.1.11 Multiple gene inheritance, and 5.1.12 Development of our understanding of genetics. Each one has a worked solution and a mark scheme showing where the marks go.

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