Benjamin Pierce
ISBN #9781464109461
5th Edition
1,059 Questions
Homework Questions
None
CONCEPT
DEFINITION
Autosomal Recessive Disorder
A type of genetic disorder in which two copies of a mutant allele (one from each parent) are required for the trait to be expressed. In the book, albinism is used as a classic example of this disorder.
What does the term recombination mean? What are two causes of recombination?
In a testcross for two genes, what types of gametes are produced with (a) complete linkage, (b) independent assortment, and (c) incomplete linkage?
What effect does crossing over have on linkage?
Why is the frequency of recombinant gametes always half the frequency of crossing over?
What is the difference between genes in coupling configuration and genes in repulsion? How does the arrangement of linked genes (whether they are in coupling or repulsion) affect the results of a genetic cross?