Biology Science Notebook
1st Edition
ISBN: 9780078961014
Author: GLENCOE
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 10.1, Problem 5MI
Chromosomes and chromosome numbers
Identify three characteristics that are the same in each member of a pair of homologous chromosomes. Name one thing that is different.
Expert Solution & Answer
Summary Introduction
To identify:
Three characteristics that are same in each pair of homologous chromosomes and one feature that is different
Introduction:
Chromosomes are the structures that contain the genetic material that is passed from generation to generation of cells. DNA double helix is the fundamental unit of heredity. They carry genetic codes to guide our body to perform various functions. These DNA molecules are packed into tightly wound structures called chromosomes which appear as beaded strings under light microscope.
Answer to Problem 5MI
| Same | Different |
| Length Position of centromere Position of genes | Alleles for each trait |
Explanation of Solution
Homologous chromosomes are pairs of chromosomes that have the same length, centromere position, pairs together during meiosis and have the same gene sequence. They are similar but not exactly identical. They carry the same genes in the same order but the alleles for each trait may be different on each chromosome. This ensures that the phenotypes are different for the same genes.
Chapter 10 Solutions
Biology Science Notebook
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