Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 14, Problem 5TY
Summary Introduction
Introduction:
The cell division is of 2 types, mitosis and meiosis. The mitosis is the process of the cell division, which occur in all the somatic cells present in the body of the multicellular organism. The meiosis is the cell division, which occurs to produce the haploid germ cells.
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A duplicated chromosome consists of two ______.
centromeres
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genomes
sister chromatids
Which of the following structures are associated with the ends of chromosomes and may shorten over many cell divisions?
histones
telomeres
spindles
all of the above
After the DNA in a chromosome has replicated (made an identical copy) but still consists of two identical strands of DNA attached to each other, not yet separated, these structures are known as ________.
daughter chromatids / daughter chromosomes
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Chapter 14 Solutions
Principles of Biology
Ch. 14.1 - Researchers usually treat cells with drugs that...Ch. 14.1 - Researchers usually treat cells with drugs that...Ch. 14.1 - Refer back to Figure 13.13. How do checkpoint...Ch. 14.1 - A cell that is diploid has two chromosomes. pairs...Ch. 14.1 - In eukaryotes, DNA replication produces sister...Ch. 14.1 - Prob. 3TYKCh. 14.2 - Refer back to the karyotype in Figure 14.1. In...Ch. 14.2 - What are the functions of the three types of...Ch. 14.2 - Prob. 1TYKCh. 14.2 - Prob. 2TYK
Ch. 14.2 - Sister chromatids separate from each other during...Ch. 14.2 - With regard to chromosome composition, how does...Ch. 14.3 - Prob. 1CCCh. 14.3 - Prob. 2CCCh. 14.3 - What is the main reason for meiosis in animals?...Ch. 14.3 - In meiosis I, crossing over occurs during...Ch. 14.3 - Prob. 2TYKCh. 14.3 - Prob. 3TYKCh. 14.4 - Prob. 1CCCh. 14.4 - A chromosome in which the telomere is at one end...Ch. 14.4 - Prob. 2TYKCh. 14.4 - Prob. 3TYKCh. 14 - Prob. 1TYCh. 14 - Prob. 2TYCh. 14 - Checkpoints during the cell cycle are important...Ch. 14 - Prob. 4TYCh. 14 - Prob. 5TYCh. 14 - Prob. 6TYCh. 14 - Prob. 7TYCh. 14 - Prob. 8TYCh. 14 - Prob. 9TYCh. 14 - Prob. 10TYCh. 14 - Distinguish between homologous chromosomes and...Ch. 14 - The Oca2 gene, which influences eye color in...Ch. 14 - PRINCIPLES A principle of biology is that cells...Ch. 14 - Why is it necessary for chromosomes to condense...
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- Which of the following occurs during interphase? Sister chromatids separate. Chromatin becomes tightly coiled. The mitotic spindle forms. Chromosome duplication.arrow_forwardWhich of the following statement is correct about chromosome? options: Chromosomes are present as pairs of homologous chromosomes Chromosomes are divided equally between the two daughter cells during cell division Chromosomes are doubled prior to cell division All of the abovearrow_forwardIn which of the following ways do polytene chromosomes differ from other chromosomes? Polytene chromosomes are multiple copies of identical single-stranded DNA. Polytene chromosomes can only be found in bacteria. Polytene chromosomes are replicated but not separated. Polytene chromosomes are fully condensed DNA. Polytene chromosomes represent uncoiled versions of meiotic chromosomes.arrow_forward
- 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 strandsarrow_forwardDescriptions of Some Structures Involved in Cell Division Arrangement of stained chromosomes into homologous pairs from longest to shortest Non-condensed DNA A specialized region on chromosomes where sister chromatids are joined together A length of DNA and its associated proteins Description Number Chromosome Answer Chromatin Answer Karyotype Answer Centromere Answerarrow_forwardWhich of the following stages would consist of duplicated chromosomes? only after G2 all stages of interphase only after prophase starts G2arrow_forward
- Which of the following is characteristics of an acrocentric chromosome?1.centromere is closer to one end of the chromosome producing one long arm and one short arm 2. There is more than one centromere 3. Centromere is the center of the chromosome 4.centromere is at the very end of the chromosomearrow_forwardWhich of the following experimental observations would suggest that chromosomes move by polymerization of tubulin subunits? Chemicals that block tubulin subunit interactions also block chromosome movement. Chromosomes are individually attached to microtubules. Chromosomes move by sliding past each one another. Energy is expended in the process of chromosome movement.arrow_forwardA homologous pair is composed of four sister chromatids, each with its owncentromere. four sister chromatids attached at a common centromere. four chromosomes with two sister chromatids each. two chromosomes with two sister chromatids each. two sister chromatids with separate centromeres.arrow_forward
- Which statement is FALSE about interphase? DNA is replicated (copied) during interphase Interphase happens once before meiosis The cell grows during interphase Interphase ONLY happens in mitosis.arrow_forwardIn the example below, how many chromosomes are in each cell in prophase and anaphase? a. 8and8 b. 4and4 c. 4and8 d. 8and4 e. 2and8arrow_forwardDuring which of the following stages of interphase does the chromosomes consist of two chromatids joined at the centromere? Select one: G1 and G2 S and G2 G1 G1, G2 and Sarrow_forward
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