Skip to content
MathsGenie logo
Open app

Course home

  1. GCSE
  3. Biology Edexcel
  5. Question bank

Inheritance and genetic crosses

EasyMediumHard
123456789101112131415161718192021222324
Question 2

In fruit flies (Drosophila melanogaster), eye colour is a sex-linked trait carried on the X chromosome. Red eyes are dominant to white eyes.

  • The allele for red eyes is represented by XWX^WXW.
  • The allele for white eyes is represented by XwX^wXw.

Complete the Punnett square to show the potential genotypes of the offspring from a white-eyed male and a heterozygous red-eyed female.

Male Gametes
Female Gametes
[3]

Inheritance and genetic crosses Questions

  1. GCSE
  2. /Biology
  3. /Inheritance and genetic crosses