Two people who are heterozygous for retinitis pigmentosa are expecting a baby. Draw a genetic diagram to calculate the probability that the baby will have the condition. Use R for the normal allele and r for the allele for retinitis pigmentosa.

Parents Rr x RrPunnett Square Probability = 1/4

GM
Answered by Garry M. Biology tutor

2999 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

Describe and explain the lock and key model of enzyme action, and how denaturation affects this.


What are the products of digestion of a) proteins, b) fats and c) carbohydrates?


Name the 4 different stages of Mitosis?


Describe the function of plant leaf stomata.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning