7 Albinism is a genetic trait resulting from the inheritance of recessive alleles. (a) (i) Distinguish between the terms allele and gene. (ii) Explain the meaning of the term recessive allele.

a i) a gene is a section of DNA that codes for a protein and has a specific location on a chromosome while an ellel is just a different form of a gene

ii) a recessive allele is one that is expressed in the phenotype of an organism only if a dominant allele is not present

EI
Answered by Elysa I. Biology tutor

5479 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What makes DNA molecules so stable?


What are the different protein structures?


mRNA is used during translation to form polypeptides. Describe how mRNA is produced in the nucleus of a cell. (6)


What are the models for enzyme action and how to remember the differences?


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