BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 10, Problem 3U
What is a nucleosome?
a. A region in the cell’s nucleus that contains euchromatin
b. A region of DNA wound around histone proteins
c. A region of a chromosome made up of multiple loops of chromatin
d. A 30-nm fiber found in chromatin
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26. What is chromatin?
A. DNA and lipids
B. RNA and lipids
CDNA and protein
D. RNA and protein
27. Which of the following is true?
A. Peroxisomes contain catalase, which lowers the activation energy
B. Peroxisomes contain catalase, which raise the activation energy
C. Smooth endoplasmic reticulum contain catalase, which lowers the activation ener
D. Smooth endoplasmic reticulum contain catalase, which raises the activation energ
28. Which of the following is true about saturated fatty acids?
A. They do not contain double bonds
B. They do contain have double bonds
29. A steroid is classified as a
A. Carbohydrate
B. Lipid
C. Protein
D. Nucleic acid
In a nucleosome, what is the DNA wrapped around?
A. mRNA
B. Nucleolus protein.
C. Ribosomes.
D. Polymerase molecules.
E. Histones
The DNA in a cell associates with proteins to form chromatin. What is a nucleosome?
Chapter 10 Solutions
BIOLOGY
Ch. 10.1 - Prob. 1LOCh. 10.2 - Prob. 1LOCh. 10.2 - Distinguish between homologues and sister...Ch. 10.2 - Prob. 3LOCh. 10.3 - Describe the eukaryotic cell cycle.Ch. 10.4 - Prob. 1LOCh. 10.4 - Prob. 2LOCh. 10.5 - Describe the phases of mitosis.Ch. 10.5 - Explain the importance of metaphase.Ch. 10.5 - Compare cytokinesis in plants and animals.
Ch. 10.6 - Prob. 1LOCh. 10.6 - Prob. 2LOCh. 10.7 - Prob. 1LOCh. 10.7 - Prob. 2LOCh. 10 - Binary fission in prokaryotes does not require the...Ch. 10 - Chromatin is composed of a. RNA and protein. b....Ch. 10 - What is a nucleosome? a. A region in the cells...Ch. 10 - What is the role of cohesin proteins in cell...Ch. 10 - The kinetochore is a structure that functions to...Ch. 10 - Separation of the sister chromatids occurs during...Ch. 10 - Why is cytokinesis an important part of cell...Ch. 10 - What steps in the cell cycle represent...Ch. 10 - Cyclin-dependent kinases (Cdks) are regulated by...Ch. 10 - Prob. 2ACh. 10 - Genetically, proto-oncogenes act in a dominant...Ch. 10 - The metaphase to anaphase transition involves a....Ch. 10 - The main difference between bacterial cell...Ch. 10 - In animal cells, cytokinesis is accomplished by a...Ch. 10 - Regulation of the cell cycle is very complex and...Ch. 10 - Review you knowledge of signaling pathways...Ch. 10 - Compare and contrast how mutations in cellular...
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- In nucleosome, the DNA is wrapped around a. histones b. ribosomes c. polymerase molecule d. a thymine dimerarrow_forwardDescribe the appearance and composition of chromatin and the structure of nucleosomes. Comment on the significance of histone proteins.arrow_forwardIn eukaryotic chromosomes, DNA wraps around _________. a. histone proteins c. centromeres b. sister chromatids d. nucleosomesarrow_forward
- Which of the following represents the order of increasingly higher levels of organization of chromatin? Select one: O a. looped domain, nucleosome, 30-nm chromatin fiber O b. 30-nm chromatin fiber, nucleosome, looped domain C. nucleosome, looped domain, 30-nm chromatin fiber O d. looped domain, 30-nm chromatin fiber, nucleosome nucleosome, 30-nm chromatin fiber, looped domain е.arrow_forwardConstruct a concept map with the following terms: Eukaryotic chromosome, euchromatin, heterochromatin, facultative heterochromatin, constitutive heterochromatin, chromatin, DNA, protein, histones, non-histone proteins, nucleosome, H1, H2A, H2B, H3, H4, octamer, linker DNAarrow_forwardHistones form more accessible chromatin because of Select one: a. Reduced electrostatic attraction between the histone and the negatively charged DNA backbone b. Increased electrostatic attraction between the histone and the negatively charged DNA backbone c. Reduced covalent bonding between the histone and the negatively charged DNA backbone d. Increased covalent bonding between the histone and the negatively charged DNA backbonearrow_forward
- What is the difference between heterochromatin and euchromatin in terms of: A. Gene expression B. Dye staining C. Nuclease sensitivity D. Level of acetylation E. Chromosome territory locationarrow_forwardWhich figure shows a chromatin structure that is most likely from a gene that is epigenetically silenced? A B OA Barrow_forwardhow is the structure of chromatin loops beneficial to a cell?arrow_forward
- Which of these is NOT true of nucleosomes? A. Some post-translational modifications to histone proteins serve as binding sites for transcription factors. B. The position of nucleosomes is fixed on the genome and can not be changed. C. The position and post-translational modifications of histones can be inherited through mitosis. D. The binding between DNA and histone proteins can be disrupted by post-translational modifications.arrow_forwardWhat process is the P site in a ribosome most closely associated with? a. Binds the tRNA molecule carrying the next needed amino acid to the mRNA strand b. Transcription of DNA to RNA c. Release of a tRNA molecule from a ribosome d. Anchoring of the tRNA holding the growing polypeptidearrow_forwardWhat is chromatin? How are chromatin and chromosomes related?arrow_forward
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