Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 8, Problem 7SQ
Summary Introduction
Concept introduction: Chromosomes are present in both prokaryotes and eukaryotes and make up the genetic material of an organism. Chromosomes are thin, thread like structures visible at time of cell division. Chromosomes are actually DNA in compacted form that are held together by basic proteins known as histones.
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Human body cells are diploid, which mean they______ . a. divide to form two cells b. have two full sets of chromosomes c. contain two chromosomes
interphase 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 strands
DNA doubles ___.
A. before mitosis
B. during metaphase of mitosis
C. at any time during cell division
D. during prophase of mitosis
E. immediately before prophase of mitosis
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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- Long strands of DNA are called _______. a autosomes b genes c chromosomes d chromatidsarrow_forwardHomologous chromosomes_____ . a. are inherited from two parents b. are sister chromatids c. are different in size and in lengtharrow_forwardMitosis is a form Of ____. There are three other ways in which these two processes differarrow_forward
- The cell cycle results in the production of ______. four cells, each with the same amount of genetic material but with different genetic information two cells, each with the same amount of genetic material and the same genetic information four cells, each with the same amount of genetic material and the same genetic information two cells, each with the same amount of genetic material but with different genetic informationarrow_forwardWhen DNA synthesis occurs in a cell, it results in the formation of _____. A. homologs B. duplicated centrosomes C. more microtubules D. sister chromatids 23.arrow_forwardIn intervals of interphase, G stands for_____ . a. gap c. Gey b. growth d. genearrow_forward
- After mitosis and cytokinesis, the chromosome number of descendent cells is ____ the parent cell.arrow_forwardWhat type of cell is undergoing mitosis in this picture? A. n=2 B. n=4 C. n=8 D. 2n=2 E. 2n=4 F. 2n=8arrow_forwardInterphase is the part of the cell cycle when________ . a. a cell ceases to function b. a cell forms its spindle apparatus c. a cell grows and replicates its DNA d. mitosis proceedsarrow_forward
- In an organism with 6 pairs of chromosomes, how many chromosomes and DNA molecules (chromatids) will be present in EACH cell at the following stages: a. G1: chromosomes _______ chromatids _________ b. Metaphase of mitosis: chromosomes ______ chromatids Answer _______ c. Following telophase of mitosis: chromosomes________ chromatids _____ d. Metaphase of meiosis I: chromosomes _____ chromatids ______ e. Following telophase of meiosis I: chromosomes _______ chromatids ________ f. Following completion of meiosis II: chromosomes _____ chromatids _____arrow_forwardDNA or deoxyribonucleic acid is the hereditary material in humans and almost all other organisms. Nearly every cell in a person's body has the same DNA. This, in turn, replicates in the non-dividing phase of the cell cycle which is a. telophase b. cytokinesis c. metaphase d. interphasearrow_forwardMitosis a. is division of the genetic material within the nucleus b. is the formation of sex cells c. creates diversity in genetic potential d. is always a part of the cell cyclearrow_forward
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