Introduction to Genetic Analysis
Introduction to Genetic Analysis
11th Edition
ISBN: 9781464109485
Author: Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley
Publisher: W. H. Freeman
Question
Book Icon
Chapter 18, Problem 1P
Summary Introduction

To determine: The individual with least and most heterozygous loci from the given microsatellite image.

Introduction: A microsatellite is a segment of repetitive DNA that contains specific DNA motifs repeated anywhere between 5 and 50 times. Numerous sites across the genome of an organism contain microsatellites. They experience more mutations than other parts of the DNA. Microsatellites are frequently employed for DNA profiling, or genetic fingerprinting, of tissues and crime scene stains. They are frequently employed in paternity analysis as well.

Expert Solution & Answer
Check Mark

Explanation of Solution

In the given microsatellite image, a gel having loci for 5 microsatellites has been represented. The three vertical lanes on the gel correspond to three individuals (1, 2, and 3).

It can be seen from the image that there are 3 alleles for locus 1. At loci 2 and 3, there are 2 alleles. Similarly, at loci 4 and 5, there are 2 alleles.

Individual 1 is not heterozygous at any locus, individual 2 is heterozygous at loci 1 and 2. Individual 3 is heterozygous at loci 1, 3, and 4.

Hence, it is clear that individual 3 has the most heterozygous loci while individual 1 has least (zero) heterozygous loci.

Conclusion

Individual 1 and 3 have the least and the most heterozygous loci.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
In Figure 4-10, what is the mean frequency of crossoversper meiosis in the region A–B? The region B–C?
What will be the expected phenotypic class distribution if only two genes are linked?
What hemispheric dominance?Explain

Chapter 18 Solutions

Introduction to Genetic Analysis

Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Text book image
Case Studies In Health Information Management
Biology
ISBN:9781337676908
Author:SCHNERING
Publisher:Cengage
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College