Info

(

b a

c

)

We make a cross AABB X aabb, and obtain an Fj generation with a genotype AaBb. We test cross these AaBb individuals with aabb. Here are the genotypes of the first 1,000 progeny:

We make a cross AABB X aabb, and obtain an Fj generation with a genotype AaBb. We test cross these AaBb individuals with aabb. Here are the genotypes of the first 1,000 progeny:

450 AaBb, 450 aabb, 50 Aabb, and 50 aaBb.

[2 How far apart are the a and b genes? Well, what is the recombinant frequency? Which are the recombinant types, and which are the parental types?

Recombinant frequency (a to b) = (50 + 50)/1,000 = 0.1 So the map distance is

Map distance = 100 X recombinant frequency = 100 X 0.1 = 10 cM

Was this article helpful?

0 0
Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

Get My Free Ebook


Post a comment