There may be multiple answers to each question 30. Which of the following statements are correct regarding a nucleosome?a.) contains an octamer core of histones.b.) is the site of RNA splicing.c.) is the "string" of the "beads-on-a-string" appearance of condensed DNA.d.) can be modified by acetylation or methylation to regulate DNA condensation.31. DNA polymerases share which of the following characteristics?a.) They only add amino acids to an RNA primer.b.) They only add nucleotides to an existing strand or primer.c.) They synthesize DNA by adding nucleotides to the 5' end of the growing chain.d.) They synthesize DNA by adding nucleotides to the 3' end of the growing chain.

Answered: 30. Which of the following statements…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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30. Which of the following statements are correct regarding a nucleosome?
a.) contains an octamer core of histones.
b.) is the site of RNA splicing.
c.) is the "string" of the "beads-on-a-string" appearance of condensed DNA.
d.) can be modified by acetylation or methylation to regulate DNA condensation.
31. DNA polymerases share which of the following characteristics?
a.) They only add amino acids to an RNA primer.
b.) They only add nucleotides to an existing strand or primer.
c.) They synthesize DNA by adding nucleotides to the 5' end of the growing chain.
d.) They synthesize DNA by adding nucleotides to the 3' end of the growing chain.

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A nucleosome is the basic unit of DNA packaging in eukaryotic cells. It is composed of a segment of DNA (approximately 147 base pairs) wrapped around an octamer of histone proteins. The histones play an important role in compacting the DNA and controlling its accessibility to the cellular machinery, such as enzymes involved in gene expression.

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