Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 10, Problem 22CONQ
Which of the following terms should not be used to describe a Barr body?
A. Chromatin
B. Euchromatin
C. Heterochromatin
D. Chromosome
E. Genome
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Chapter 10 Solutions
Genetics: Analysis and Principles
Ch. 10.1 - 1. A bacterial chromosome typically contains
a. a...Ch. 10.2 - Mechanisms that make the bacterial chromosome more...Ch. 10.2 - 2. Negative supercoiling may enhance activities...Ch. 10.2 - 3. DNA gyrase
a. promotes negative supercoiling....Ch. 10.3 - 1. The chromosomes of eukaryotes typically contain...Ch. 10.4 - Which of the following is an example of a...Ch. 10.5 - What are the components of a single nucleosome? a....Ch. 10.5 - 2. In Noll’s experiment to test the...Ch. 10.5 - Prob. 3COMQCh. 10.5 - Prob. 4COMQ
Ch. 10.6 - Prob. 1COMQCh. 10.6 - 2. The role of cohesin is to
a. make chromosomes...Ch. 10 - Prob. 1CONQCh. 10 - Prob. 2CONQCh. 10 - 3. Describe the mechanisms by which bacterial DNA...Ch. 10 - Why is DNA supercoiling called supercoiling rather...Ch. 10 - Prob. 5CONQCh. 10 - Prob. 6CONQCh. 10 - Prob. 7CONQCh. 10 - Prob. 8CONQCh. 10 - Prob. 9CONQCh. 10 - 10. What is the function of a centromere? At what...Ch. 10 - Prob. 11CONQCh. 10 - 12. Describe the structures of a nucleosome and a...Ch. 10 - Beginning with the G1 phase of the cell cycle,...Ch. 10 - Draw a picture depicting the binding between the...Ch. 10 - 15. Compare heterochromatin and euchromatin. What...Ch. 10 - 16. Compare the structure and cell localization of...Ch. 10 - 17. What types of genetic activities occur during...Ch. 10 - Lets assume the linker region of DNA averages 54bp...Ch. 10 - 19. In Figure 10.12, what are we looking at in...Ch. 10 - 20. What are the roles of the core histone...Ch. 10 - A typical eukaryotic chromosome found in humans...Ch. 10 - Which of the following terms should not be used to...Ch. 10 - Discuss the differences between the compaction...Ch. 10 - 24. What is an SMC complex? Describe two...Ch. 10 - Two circular DNA molecules, which we can call...Ch. 10 - 2. Let’s suppose you have isolated DNA from a cell...Ch. 10 - 3. We seem to know more about the structure of...Ch. 10 - In Nolls experiment of Figure 10.11, explain where...Ch. 10 - When chromatin is treated with a salt solution of...Ch. 10 - 6. Let’s suppose you have isolated chromatin from...Ch. 10 - If you were given a sample of chromosomal DNA and...Ch. 10 - Consider how histone proteins bind to DNA and then...Ch. 10 - In Chapter 23, the technique of fluorescence in...Ch. 10 - Bacterial and eukaryotic chromosomes are very...Ch. 10 - The prevalence of highly repetitive sequences...Ch. 10 - Discuss and make a list of the similarities and...
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- Define the following terms: a. chromosome b. chromatinarrow_forwardWhich of the following complex compound is used in the treatment of cancer?A. Cis platin B. Transplatin C. Potassium ferrocyanide D. Sodium cobal nitritearrow_forwardThe nuclear matrix composition: a. lamina, nucleosome b. cortex, lamina, c. nucleosome d. lamina, interchromatin networkarrow_forward
- The chromatin is composed of... a. DNA (10%), RNA (30%), and histone proteins (60%)b. DNA (30%), RNA (30%), and histone proteins (40%)c. DNA (60%), RNA (30%), and histone proteins (10%)d. DNA (30%), RNA (10%), and histone proteins (60%)e. none of the abovearrow_forwardWhich of the following statements accurately describes DNA sequences and this subtypes? A. permissive DNA; centromeres and heterochromatin B. moderately repetitive DNA; SINEs, LINEs, and VNTRs C. dominant DNA; euchromatin and heterochromatin D. multiple gene family DNA; hemoglobin and 5.0S RNA E. composite DNA; telomeres and heterochromatinarrow_forwardThe form of DNA that contains genes that are actively beingtranscribed is calleda. histones.b. telomeres.c. heterochromatin.d. euchromatin.arrow_forward
- Which of the following is evidence for the natural existence of Z-DNA?: A. Z-DNA is a right handed helix like B-DNA B. Specific Z-DNA binding proteins have been identified C. Z-DNA is prevalent in sex chromosomes D. Z-DNA forms under high salt conditions E. Z-DNA is tightly coiled in nucleosomesarrow_forwardDNA that makes up Chromosomes is complexed with proteins and is called Chromatin. One of the most important proteins associated with DNA that helps to organize it in the nucleus is called: A. Euchromatin. B. Heterochromatin. C. Histones. D. Centromeres.arrow_forwardWhich type of chromatin makes dark bands? Does this type usually contain more or less active genes? Group of answer choices 1. Euchromatin; less active genes because the DNA is more tightly packed 2. Heterochromatin; more active genes because DNA is less tightly packed 3. Heterochromatin; less active genes because the DNA is more tightly packed 4. Euchromatin; more active genes because DNA is less tightly packedarrow_forward
- Eukaryotic chromosomes a. have only histones b. have DNA and RNA c. have DNA, RNA, and protein d. have DNA, histones, and scaffold protein e. are made of RNA and proteinarrow_forward1.) Chromosome images are obtained from any cell type that has a nucleus. 2.) Chromosomes can be obtained from reticulocytes. a. Both are correct b. Both are incorrect c. Statement 1 is incorrect. Statement 2 is correct.arrow_forwardWhich of the following statements about chromosomes and centromeres is INCORRECT?(choose the letter that corresponds to the answer) A. A centromere is a constriction visible on metaphase chromosomes. B. Centromere position is a useful marker for dividing chromosomes into karyotype groups. C. Centromeric protein-A replaces histone H3 in nucleosomes found at the centromere. D. Acentric and dicentric chromosomes are genetically stable chromosomes.arrow_forward
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