Biology: How Life Works
Biology: How Life Works
3rd Edition
ISBN: 9781319017637
Author: James Morris, Daniel Hartl, Andrew Knoll, Melissa Michael, Robert Lue, Andrew Berry, Andrew Biewener, Brian Farrell, N. Michele Holbrook
Publisher: Macmillan Higher Education
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Chapter 20.2, Problem 4SAQ
Summary Introduction

To determine:

The allele frequency for A and a from the genotype frequencies of aa, Aa and AA.

Concept introduction:

Alleles are the variants of the same gene. Like the gene for height has two alleles T for tall and t for short height. A gene may have more than two alleles as well like in the case of ABO blood grouping. To study the genetic variations, the knowledge of allele frequency is a pre-requisite. It is the number of allele in question divided by the total alleles of the same gene in a population.

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Genetic Variation and Mutation | 9-1 GCSE Science Biology | OCR, AQA, Edexcel; Author: SnapRevise;https://www.youtube.com/watch?v=bLP8udGGfHU;License: Standard YouTube License, CC-BY