Answered: The nucleosomal core in eukaryotes…

The nucleosomal core in eukaryotes consists of all of the following histone proteins except: histone H1 histone H2A histone H2B histone H3 histone H4

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 25QP: Discuss the levels of chromosomal organization with reference to the following terms: a. nucleotide...

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Question

. The nucleosomal core in eukaryotes consists of all of the following histone proteins except:

histone H1
histone H2A
histone H2B
histone H3
histone H4

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Which of the following statements about nucleosomes is NOT true? DNA is on the outside and is wrapped around the histone octamer DNA is inside the nucleosome core, surrounded by a histone octamer. Histone H1 is associated with the chromatosome. Histones H2A, H2B, H3, and H4 are the core histones.
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Histones contain many basic amino acids including lysine. DNA and histones collectively form chromatin. Open chromatin is much more open and accessible to the transcriptional machinery than closed chromatin. Histone lysine acetylation is associated with open chromatin and occurs near genes that are being actively transcribed. Part A Given what you know about the chemical properties of DNA and the function of histones. whv do histones contain so many basic amino acids? Answer in no more than two sentences. Part B Given what you know about how acetylation affects lysine, why does histone lysine acetylation open chromatin? Answer in one sentence only.
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There are two ways in which rearrangement of domain- encoding gene segments can result in novel protein functions. Which of the following is NOT included? Domain shuffling Domain duplication Domain replication Domain substitution Which of the following features are NOT shared by prokaryotic and eukaryotic cells? shared metabolic pathways similar mechanism for synthesizing and inserting membrane proteins plasma membrane of similar structure nucleosomes of similar construction
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