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AP Bio Campbell 7E Chapter 19 Test Bank

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Subject: 
Biology
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Tags: 
Biology
Genetics
Molecular genetics
Epigenetics
Gene expression
Molecular biology
Chromatin
Euchromatin
Histone
Nucleosome
DNA
Transcription factor
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Attachment theory
Ethology
Personal life
Technology

Ch 19 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. The condensed chromosomes observed in mitosis include all of the following structures except a. nucleosomes. b. 30-nm fibers. c. 300-nm fibers. d. looped domain. e. ribosomes. ____ 2. Under the electron microscope, unfolded chromatin resembles "beads on a string." What do the "beads" represent? a. nucleosomes b. ribosomes c. beadosomes d. molecules of DNA polymerase e. molecules of RNA polymerase ____ 3. In a nucleosome, what is the DNA wrapped around? a. polymerase molecules b. ribosomes c. mRNA d. histones e. nucleolus protein

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