Which of the following has beads on a string structure?a) Nucleosomesb) Chromosomesc) Heterochromatind) Chromatin

Nucleosomes are the basic structural units of chromatin, which is the material that makes up…

Answered: Which of the following has beads on a…

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter21: Dna, Genes, And Biotechnology

Section: Chapter Questions

Problem 1RQ: Why is DNA replication called semiconservative?

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Similar questions

Place the following structures in order from least to most complex organization: chromatin, nucleosome, DNA, chromosome DNA, nucleosome, chromatin, chromosome nucleosome, DNA, chromosome, chromatin DNA, chromatin, nucleosome, chromosome nucleosome, chromatin, DNA, chromosome
Define the following terms: a. chromosome b. chromatin
Discuss the levels of chromosomal organization with reference to the following terms: a. nucleotide b. DNA double helix c. histones d. nucleosomes e. chromatin
What is the purpose and benefit of the polymerase chain reaction?
How does DNA replication occur in a precise manner to ensure that identical genetic information is put into the new chromatid? See Figures 8.12 and 8.13. FIGURE 8.12 In DNA replication, the two polynucleotide strands uncoil, and each is a template for synthesizing a new strand. A replicated DNA molecule contains one new strand and one old strand. This mechanism is called semiconservative replication. FIGURE 8.13 A close-up look at the process of DNA replication. (a) As the strands uncoil, bases are added to the newly synthesized strand by complementary base pairing with bases in the template strand. The new bases are linked together by DNA polymerase. (b) DNA synthesis can proceed only in the 5 3 direction; newly synthesized DNA on one template strand is made in short segments and linked together by the enzyme DNA ligase.
In the context of cell biology, what do we mean by form follows function? What are a least two examples of this concept?
In eukaryotic chromosomes, DNA wraps around _________. a. histone proteins c. centromeres b. sister chromatids d. nucleosomes
How many autosomes are present in a body cell of a human being? In a gamete?
How many kilobases of the DNA strand below will code for the protein product?
Which of the following best describes the process of DNA sequencing? a. DNA is separated on a gel, and the different bands are labeled with fluorescent nucleotides and scanned with a laser. b. A laser is used to fluorescently label the nucleotides present within the DNA, the DNA is run on a gel, and then the DNA is broken into fragments. c. Nucleotides are scanned with a laser and incorporated into the DNA that has been separated on a gel, and then the DNA is amplified with PCR. d. Fragments of DNA are produced in a reaction that labels them with any of four different fluorescent dyes, and the fragments then are run on a gel and scanned with a laser. e. DNA is broken down into its constituent nucleotides, and the nucleotides are then run on a gel and purified with a laser.
Prokaryotes contain a ______ chromosome, and eukaryotes contain ________ chromosomes. a. single-stranded circular; single-stranded linear b. single-stranded linear: single-stranded circular c. double-stranded circular; double-stranded linear d. double-stranded linear; double-stranded circular
Figure 14.10 In eukaryotic cells, DNA and RNA synthesis occur in a separate compartment from protein synthesis. In prokaryotic cells, both processes occur together. What advantages might there be to separating the processes? What advantages might there be to having them occur together?

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Which of the following has beads on a string structure? a) Nucleosomes b) Chromosomes c) Heterochromatin d) Chromatin