Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 16, Problem 21TYK
Summary Introduction
Introduction: A chromosome is a thread-like structure made up of DNA. It is tightly packed in the nucleus of a cell. Humans normally have 23 pairs of chromosomes.
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Check out a sample textbook solutionStudents have asked these similar questions
The structural unit of the eukaryotic genome is called a(n): a. nucleosome b. histone c. chromatin d. exon
In nucleosome, the DNA is wrapped around
a. histones
b. ribosomes
c. polymerase molecule
d. a thymine dimer
How many copies of the H2B histone would be found in chromatin containing 50 nucleosomes?
a. 5
b. 10
c. 50
d. 100
Chapter 16 Solutions
Study Guide for Campbell Biology
Ch. 16 - Hershey and Chase devised an experiment using...Ch. 16 - Review the structure of DNA by labeling the...Ch. 16 - Using different colors for heavy (parental) and...Ch. 16 - Look back to Interactive Question 16.2 and label...Ch. 16 - In this diagram of bacterial DNA replication,...Ch. 16 - Draw the last Okazaki fragment being formed on the...Ch. 16 - List the successive levels of packing in a...Ch. 16 - Prob. 1SYKCh. 16 - Prob. 2SYKCh. 16 - One of the reasons most scientists thought...
Ch. 16 - Transformation involves a. the uptake of external...Ch. 16 - Prob. 3TYKCh. 16 - Which of the following most closely represents...Ch. 16 - Prob. 5TYKCh. 16 - Prob. 6TYKCh. 16 - In their classic experiment, Meselson and Stahl a....Ch. 16 - The joining of nucleotides in the polymerization...Ch. 16 - DNA polymerase is not able to begin copying a DNA...Ch. 16 - Prob. 10TYKCh. 16 - Prob. 11TYKCh. 16 - Prob. 12TYKCh. 16 - Which of the following is least related to the...Ch. 16 - Prob. 14TYKCh. 16 - Prob. 15TYKCh. 16 - Prob. 16TYKCh. 16 - Prob. 17TYKCh. 16 - Which of the following statements about telomeres...Ch. 16 - You are trying to test your hypothesis that DNA...Ch. 16 - Given the experimental procedure explained in...Ch. 16 - Prob. 21TYKCh. 16 - Biologists have learned from the technique of...
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- The nuclear matrix composition: a. lamina, nucleosome b. cortex, lamina, c. nucleosome d. lamina, interchromatin networkarrow_forwardLoosening the chromatin structure occurs because of Select one: a. Lysine methylation b. Lysine acetylation c. Lysine phosphorylation d. Lysine sumoylationarrow_forwardIn a nucleosome, what is the DNA wrapped around? A. mRNA B. Nucleolus protein. C. Ribosomes. D. Polymerase molecules. E. Histonesarrow_forward
- What is the difference between heterochromatin and euchromatin in terms of: A. Gene expression B. Dye staining C. Nuclease sensitivity D. Level of acetylation E. Chromosome territory locationarrow_forwardAll of the following will move from the inside of the nucleus to the cytoplasm through a nuclear pore EXCEPT: A. rRNA B. mature mRNA C. Small ribosome subunits D. Chromosomesarrow_forwardEuchromatin refers to regions of DNA that are loosely packed to increase the efficiency of transcription. Which of the following would you expect to find in a region of euchromatin? A. more thymines B. fewer thymines C. more histones D. fewer histonesarrow_forward
- Histones form more accessible chromatin because of Select one: a. Reduced electrostatic attraction between the histone and the negatively charged DNA backbone b. Increased electrostatic attraction between the histone and the negatively charged DNA backbone c. Reduced covalent bonding between the histone and the negatively charged DNA backbone d. Increased covalent bonding between the histone and the negatively charged DNA backbonearrow_forwardDefine the following terms: a. transcript b. proteome c. metabolome d. double helix e. base stackingarrow_forwardWhich of the following does not contribute to genetic variation in sexually reproducing species? O a. random fertilization O b. independent assortment Oc cytokinesis O d. none of the answers are correct none of the answers are correct O e. crossing over All of the following correctly describe the sodium-potassium pump EXCEPT: O a. A total of five binding sites are present in the sodium-potassium pump O b. Potassium ions are pumped into the cell, where they are present in lower concentration than the extracellular fluid O c. The transport proteins will undergo some conformational changes O d. Molecules are pumped from low concentration to high concentration O e. Energy is required for the process to take placearrow_forward
- In eukaryotic chromosomes, DNA wraps around _________. a. histone proteins c. centromeres b. sister chromatids d. nucleosomesarrow_forwardWhich sequences are spliced out of the mRNA strand before leaving the nucleus? In other words, which sequences are not part of the code for the amino acids? a. exons b. intronsarrow_forwardDescribe the function of the ribosome in two sentences.arrow_forward
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