Psychology in Modules
Psychology in Modules
11th Edition
ISBN: 9781464167522
Author: David G. Myers, C. Nathan DeWall
Publisher: Worth Publishers
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Chapter 11, Problem 1TYS
Summary Introduction

Introduction: DNA is the blueprint of life that carries heritable information. It is packed in cells, along with proteins, forming a DNA-protein complex known as chromatin. Chromatin folds in specific formations are called chromosomes. Chromosomes contain various genes made up of DNA.

Expert Solution & Answer
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Answer to Problem 1TYS

Correct answer: The thread-like structures made largely of DNA molecules are called chromosomes.

Explanation of Solution

DNA is found in the nucleus of a cell. It is packed into chromosomes, which are thread-like structures. Chromosomes are made up of DNA that is tightly coiled around histone proteins for structural support. The chromosome numbers vary according to species; in humans, each somatic cell consists of 46 chromosomes (23 pairs). These include 22 pairs of autosomes and a pair of sex chromosomes (X and Y).

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