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Concepts of Genetics 3rd Edition

Concepts of Genetics (3rd Edition)

Book Edition3rd Edition
Author(s)Brooker
ISBN9781259879906
PublisherMcGraw-Hill, Inc.
SubjectBiology
Section 21.1: OVERVIEW OF CHROMOSOME MAPPING
Concept Check
Comprehension Questions
Section 21.2: IN SITU HYBRIDIZATION
Concept Check
Comprehension Questions
Section 21.3: MOLECULAR MAKERS
Concept Check
Comprehension Questions
Section 21.4: GENOME-SEQUENCING PROJECTS
Comprehension Questions
Section 21.5: METAGENOMICS
Comprehension Questions

Chapter 21, Section 21.1, Concept Check, Exercise 01

Page 492

Here is a tip:

It is very important for researchers to know where a gene can be found on a chromosome to understand its function.

Explanation

Genetic mapping can be performed by cytogenetic mapping, linkage mapping, or physical mapping. The cytogenetic map provides researchers with the locus or the site at which a gene may be found. The linkage map gives precise information regarding the distance between two genes in map units. From the map distance between 2 genes, researchers can estimate if the genes will be inherited together. The physical map provides information regarding the distance between 2 genes based on the number of base pairs that separate them.

Verified Answer

Genetic mapping is the method by which the genes on the chromosomes are identified. Their relative distance from each other is estimated and graphically represented to understand the interaction between them.

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