Janice has cystic fibrosis. Cystic fibrosis is caused by a recessive allele (f). What is the probability of her baby having cystic fibrosis? The baby’s father is heterozygous for cystic fibrosis.

Answer = 50% chance of developing cystic fibrosis 

VP
Answered by Vishal P. Biology tutor

4439 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

What is the difference between xylem and phloem?


Why does the breathing rate not return to normal after vigorous exercise?


How does filteration occur in the kidney?


Compare and contrast the cell structure of animal, plant and bacterial cells


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