BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 8, Problem 7SA
Summary Introduction

Introduction:

In the nucleus of each cell, DNA is packaged into thread-like structures known as chromosomes. Each chromosome contains DNA coiled around histone proteins. Human body cells have two sets of 23 chromosomes. 22 pairs of chromosomes are autosomes and one pair is the sex chromosome.

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Human body cells are diploid, which mean they______ . a. divide to form two cells b. have two full sets of chromosomes c. contain two chromosomes
DNA doubles ___.   A. before mitosis   B. during metaphase of mitosis   C. at any time during cell division   D. during prophase of mitosis   E. immediately before prophase of mitosis
interphase chromosomes are __________ while mitotic chromosomes are   a. composed of 4 DNA strands; composed of 2 DNA strand b. composed of 1 DNA Strand; composed of 2 DNA strands c.composed of 2 DNA strands; composed of 1 DNA strand d. composed of 2 DNA strands; composed of 4 DNA strands
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