Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Textbook Question
Chapter 8, Problem 25QP
Discuss the levels of chromosomal organization with reference to the following terms:
- a.
nucleotide - b. DNA double helix
- c. histones
- d. nucleosomes
- e. chromatin
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The analysis of individual nucleosomes reveals that each unit contained one copy of each protein and that the short linker DNA contained no protein bound to it. If the entire chromosome consists of nucleosomes (discounting any linker DNA), how many are there, and how many total proteins are needed to form them?
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Chapter 8 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 8.4 - Two genes associated with breast cancer, BRCA1 and...Ch. 8.4 - Prob. 2GRCh. 8 - What are Bruces options at this point? Bruce and...Ch. 8 - Should he reconsider and try chemotherapy instead?...Ch. 8 - Should he go ahead and enroll on the chance that...Ch. 8 - Until 1944, which cellular component was thought...Ch. 8 - Why do you think nucleic acids were originally not...Ch. 8 - Prob. 3QPCh. 8 - In the experiments of Aery, MacLeod, and McCarty,...Ch. 8 - Read the following experiment and interpret the...
Ch. 8 - Recently, scientists discovered that a rare...Ch. 8 - List the pyrimidine bases, the purine bases, and...Ch. 8 - In analyzing the base composition of a DNA sample,...Ch. 8 - The basic building blocks of nucleic acids are: a....Ch. 8 - Adenine is a: a. nucleoside b. purine c....Ch. 8 - Polynucleotide chains have a 5 and a 3 end. Which...Ch. 8 - DNA contains many hydrogen bonds. Are hydrogen...Ch. 8 - Prob. 13QPCh. 8 - State the properties of the WatsonCrick model of...Ch. 8 - Using Figures 8.7 and 8.9 as a guide, draw a...Ch. 8 - A beginning genetics student is attempting to...Ch. 8 - Chemical analysis shows that a nucleic acid sample...Ch. 8 - Prob. 18QPCh. 8 - RNA is ribonucleic acid, and DNA is...Ch. 8 - What is the function of DNA polymerase? a. It...Ch. 8 - Which of the following statements is not true...Ch. 8 - Make the complementary strand for the following...Ch. 8 - How does DNA replication occur in a precise manner...Ch. 8 - Nucleosomes are complexes of: a. RNA and DNA b....Ch. 8 - Discuss the levels of chromosomal organization...
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- Define the following terms: a. chromosome b. chromatinarrow_forwardA diploid plant cell contains 2 billion base pairs of DNA. a. How many nucleosomes are present in the cell? b. Give the number of molecules of each type of histone protein associated with the genomic DNA.arrow_forwardIf a human nucleus is 10 mm in diameter, and it must hold as much as 2 m of DNA, which is complexed into nucleosomes that during full extension are 11 nm in diameter, what percentage of the volume of the nucleus is occupied by the genetic material?arrow_forward
- How many copies of the H2B histone would be found in chromatin containing 50 nucleosomes? a. 5 b. 10 c. 50 d. 100arrow_forwardWhat is the relation between the concepts of chromatin and chromosome? Are euchromatin and heterochromatin part of chromosomes?arrow_forwardWhich of the following make up a core nucleosome structure? A) about 147 bp of DNA D) A tetramer of histone proteins C) H1 histone E) Answers A and B are correct B) an octamer of histone proteinsarrow_forward
- Which of the following statements about histones is true?a. They are proteins whose sequence is highly conserved in all eukaryotes.b. They are the building blocks of nucleosomes.c. a and b are correct.d. None of the above are correct.arrow_forwardA son and his mother both have an inherited disorder that affects the nervous system. How would you determine if the disorder is caused by a change inchromosome structure, such as a deletion or duplication?arrow_forwardHow many chromosomes are present in a human cell?arrow_forward
- Besides H1, how many different kinds of proteins are part of the nucleosome?arrow_forwardDefine the following terms and their relationships to one another:A. interphase chromosomeB. mitotic chromosomeC. ChromatinD. heterochromatin e. histonesF. Nucleosomearrow_forwardDefine nucleosomes.arrow_forward
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