What is a gene?

A gene is a section of DNA that codes for a specific protein.

BC
Answered by Bethany C. Biology tutor

4284 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

Draw a diagram showing a normal iris and what happens to the iris when a light in shined into the human eye. (1 mark). What causes this to happen? (2 marks)


Compare the structure of prokaryotic and eukaryotic organisms.


What is a gene?


1. Polydactyly is caused by a dominant allele, D. The recessive allele of the gene is represented by d. Use one genetic diagram to show the inheritance of the polydactyly gene by R and S.


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