Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 8, Problem 7SQ
Summary Introduction

Concept introduction: Chromosomes are present in both prokaryotes and eukaryotes and make up the genetic material of an organism. Chromosomes are thin, thread like structures visible at time of cell division. Chromosomes are actually DNA in compacted form that are held together by basic proteins known as histones.

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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
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
Long strands of DNA are called _______. a autosomes b genes c chromosomes d chromatids
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