Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Textbook Question
Chapter 8, Problem 5SQ
In eukaryotic chromosomes, DNA wraps around ______.
- a. histone proteins
- b. sister chromatids
- c. the double helix
- d. centromeres
- e. nucleosomes
- f. mutations
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Our somatic cells’ DNA is distributed among 46 ________ in the nucleus. a. nucleosomes b. chromatids c. nucleoli d. chromosome
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23.
The _____ is the physical location that sister chromatids are held together and where microtubules physically attach during mitosis.
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Chapter 8 Solutions
Biology: The Unity and Diversity of Life
Ch. 8 - HersheyChase Experiments The graph shown in FIGURE...Ch. 8 - HersheyChase Experiments The graph shown in FIGURE...Ch. 8 - HersheyChase Experiments The graph shown in FIGURE...Ch. 8 - HersheyChase Experiments The graph shown in FIGURE...Ch. 8 - HersheyChase Experiments The graph shown in FIGURE...Ch. 8 - Which is not a nucleotide base in DNA? a. adenine...Ch. 8 - What are the base-pairing rules for DNA? a. AG, TC...Ch. 8 - Similarities in ________ are the basis of...Ch. 8 - One species DNA differs from others in its _____....Ch. 8 - In eukaryotic chromosomes, DNA wraps around...
Ch. 8 - The chromosome number ______. a. refers to a...Ch. 8 - Prob. 7SQCh. 8 - When DNA replication begins, ______. a. the two...Ch. 8 - Which of the following is/are not required for DNA...Ch. 8 - Energy that drives the attachment of a nucleotide...Ch. 8 - The phrase "5 prime to 3 prime" refers to the...Ch. 8 - After DNA replication, a eukaryotic chromosome...Ch. 8 - Match the terms appropriately. ______...Ch. 8 - All mutations ________. a. result from radiation...Ch. 8 - Prob. 15SQCh. 8 - Determine the complementary strand of DNA that...Ch. 8 - Review Figures 8.12 and 8.13. In cells, the...Ch. 8 - Woolly mammoths have been extinct for about 4,000...Ch. 8 - Xeroderma pigmentosum is an inherited disorder...
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- After DNA replication, a eukaryotic chromosome______ . a. consists of two sister chromatids b has a characteristic X shape c. is constricted at the centromere d. all of the abovearrow_forwardIn eukaryotic chromosomes, DNA wraps around _________. a. histone proteins c. centromeres b. sister chromatids d. nucleosomesarrow_forwardA nucleosome consists of (a) DNA and scaffolding proteins (b) scaffolding proteins and histones (c) DNA and histones (d) DNA, histones, and scaffolding proteins (e) histones onlyarrow_forward
- The correct order of compaction from least compacted to most compacted would beThe correct order of compaction from least compacted to most compacted would be __________. A. naked DNA, 30-nm fiber, nucleosome, loop domain, metaphase chromosome B. naked DNA, loop domain, 30-nm fiber, nucleosome, metaphase chromosome C. naked DNA, nucleosome, 30-nm fiber, loop domain, metaphase chromosome D. naked DNA, metaphase chromosome, loop domain, 30-nm fiber, nucleosomearrow_forwardinterphase chromosomes are __________ while mitotic chromosomes are a. composed of 4 DNA strands; composed of 2 DNA strand b. composed of 1 DNA Strand; composed of 2 DNA strands c.composed of 2 DNA strands; composed of 1 DNA strand d. composed of 2 DNA strands; composed of 4 DNA strandsarrow_forwardMorphology of Chromosomes can bebest studied at ______A. Interphase B. ProphseC. Metaphase D. Zygotenearrow_forward
- Which of the following does not contribute to genetic variation in sexually reproducing species? O a. random fertilization O b. independent assortment Oc cytokinesis O d. none of the answers are correct none of the answers are correct O e. crossing over All of the following correctly describe the sodium-potassium pump EXCEPT: O a. A total of five binding sites are present in the sodium-potassium pump O b. Potassium ions are pumped into the cell, where they are present in lower concentration than the extracellular fluid O c. The transport proteins will undergo some conformational changes O d. Molecules are pumped from low concentration to high concentration O e. Energy is required for the process to take placearrow_forwardD. Organelle A. Two identical that builds copies of DNA microtubule "highways" to guide DNA B. "staple" that holds DNA copies together C. DNA that is same length and has same instructions; one from mother and one from father Match the labeled structures to their proper term.arrow_forwardChromosomes are visible under microscope during cell division because a. Thickening of chromatins b. Disappearance of the nucleoli c. Disintegration of the nuclear membrane d. Duplication of the DNAarrow_forward
- In nucleosome, the DNA is wrapped around a. histones b. ribosomes c. polymerase molecule d. a thymine dimerarrow_forwardDefine the following terms and their relationships to one another:A. interphase chromosomeB. mitotic chromosomeC. ChromatinD. heterochromatin e. histonesF. Nucleosomearrow_forwardHomologous chromosomes_____ . a. are inherited from two parents b. are sister chromatids c. are different in size and in lengtharrow_forward
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