Skip to content

Course home

Sign up

5.1 Inheritance

EasyMediumHard
1234567891011121314151617181920212223242526272829303132
Question 26

In the domestic fowl (Gallus gallus domesticus), sex is determined by the ZW sex-chromosome system, where males are the homogametic sex (ZZZZZZ) and females are the heterogametic sex (ZWZWZW).

Which sex chromosomes are found in healthy, functional gametes produced by a female fowl?

A

All gametes contain a single ZZZ chromosome.

B

All gametes contain a single WWW chromosome.

C

Gametes contain either a single ZZZ chromosome or a single WWW chromosome.

D

All gametes contain both a ZZZ and a WWW chromosome.

Markscheme

5.1 Inheritance Questions

  1. GCSE
  2. /Biology
  3. /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.

Question bank