Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Textbook Question
Chapter 8, Problem 21QP
Which of the following statements is not true about
- a. It occurs during the M phase of the cell cycle.
- b. It makes a sister chromatid.
- c. It denatures DNA strands.
- d. It occurs semiconservatively.
- e. It follows base-pairing rules.
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Students have asked these similar questions
An enzyme such as ligase is a protein molecule. When high temperature is applied to ligase, the protein molecule changes its shape and is no longer able to perform its function. The enzyme is said to be denatured. If ligase was denatured in a cell, how would it affect its cell cycle?
Select one:
a. The cell would not be able to obtain amino acids.
b. The cell would not be able to transcribe DNA.
c. The cell would not be able to produce protein molecules.
d. The cell would not be able to replicate.
Which of the following is the main reason why DNA must exist in chromosome form?
a.)To favor the formation of sister chromatids
b.)To allow the protein histones to carry out its task
c.)To avoid the genetic material to be tangled away during cell division
d.)To promote the formation of spindle fibers
Wish of the following statements is true about DNA?
a. DNA is the hereditary material in almost all organisms
b. The replication of mitochondrial DNA is controlled by nuclear DNA
c. Most DNA is found in the mitochondria
d. Human nuclear DNA consists of one polynucleotide that carries all
e. Mitochondrial DNA controls most of the cell activities
Question After using the blender to blend the split peas, water, and salt mixture, cheesecloth is used to .........
a. Filtrate the mixture and precipitate the protein
b. Filtrates the contents of the blender to collect the strained fluid for DNA extraction
c. Separate the DNA from the protein that folded and protected the DNA
d. Collect pure nucleic acid
e. Precipitate the nucleic acid acidgenetic information
Chapter 8 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 8.4 - Two genes associated with breast cancer, BRCA1 and...Ch. 8.4 - Prob. 2GRCh. 8 - What are Bruces options at this point? Bruce and...Ch. 8 - Should he reconsider and try chemotherapy instead?...Ch. 8 - Should he go ahead and enroll on the chance that...Ch. 8 - Until 1944, which cellular component was thought...Ch. 8 - Why do you think nucleic acids were originally not...Ch. 8 - Prob. 3QPCh. 8 - In the experiments of Aery, MacLeod, and McCarty,...Ch. 8 - Read the following experiment and interpret the...
Ch. 8 - Recently, scientists discovered that a rare...Ch. 8 - List the pyrimidine bases, the purine bases, and...Ch. 8 - In analyzing the base composition of a DNA sample,...Ch. 8 - The basic building blocks of nucleic acids are: a....Ch. 8 - Adenine is a: a. nucleoside b. purine c....Ch. 8 - Polynucleotide chains have a 5 and a 3 end. Which...Ch. 8 - DNA contains many hydrogen bonds. Are hydrogen...Ch. 8 - Prob. 13QPCh. 8 - State the properties of the WatsonCrick model of...Ch. 8 - Using Figures 8.7 and 8.9 as a guide, draw a...Ch. 8 - A beginning genetics student is attempting to...Ch. 8 - Chemical analysis shows that a nucleic acid sample...Ch. 8 - Prob. 18QPCh. 8 - RNA is ribonucleic acid, and DNA is...Ch. 8 - What is the function of DNA polymerase? a. It...Ch. 8 - Which of the following statements is not true...Ch. 8 - Make the complementary strand for the following...Ch. 8 - How does DNA replication occur in a precise manner...Ch. 8 - Nucleosomes are complexes of: a. RNA and DNA b....Ch. 8 - Discuss the levels of chromosomal organization...
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- The role of the APC to get past the metaphase/ anaphase checkpoint is... Select one: a. to initiate gene expression of proteins involved in DNA replication. b. Add phosphates to the MPF to cause intermediate filaments to break down, free DNA to move in the cell. c. to add phosphate to intermediate filaments causing them to reform into the nuclear envelope d. add ubiquitin to cohesins allowing the sister chromatids to splitarrow_forwardMany chromosomes have structures called telomeres at each end. Mark all the TRUE statements about telomeres below. Mark all that apply. Select one or more: a. Telomeres protect the ends of the chromosomes b. Telomeres hold sister chromatids together after replication c. Human telomeres consist of a specific base sequence (TTAGGG) repeated about 2500 times d. Telomeres are present in all prokaryotes and eukaryotesarrow_forwardThe metaphase to anaphase transition involves a. new force being generated to pull the chromatids apart. b. an increase in force on sister chromatids to pull them apart. c. completing DNA replication of centromeres allowing chromosomes to be pulled apart. d. loss of cohesion between sister chromatids.arrow_forward
- Which of the following is FALSE about DNA replication in eukaryotes? a. It is catalyzed entirely by one DNA polymerase. b. Chromatin modifications by kinases are required. c. Polymerase switching occurs. d. It starts from multiple origins on each chromosome.arrow_forwardWhich of the following statements about cell division in prokaryotes and eukaryotes is correct? a. In prokaryotes, all cells divide if conditions are favourable; in eukaryotes, only a few cells divide, and they do so according to a developmental program b. After cell division, the daughter cells are genetically identical in prokaryotes but genetically different in eukaryotes c. In prokaryotes, only a few cells divide to ensure survival of the colony without depleting too many resources from the environment d. The process of segregation is more complicated in prokaryotes than in eukaryotes e. Reproductive signals for initiation of cell division are intracellular for prokaryotes and extracellular for eukaryotesarrow_forwardHigh concentrations of nuclear CyclinD is required for entry into S phase. Which of these events MOST likely upon entry into S phase? A. CyclinD is synthesized B. CyclinD is degraded C. DNA is polymerized D. DNA is depolymerizedarrow_forward
- In multicellular organisms, nondividing cells stay in G0 phase. For the cell, why is it better to be held in G₁ rather than S, G₂ or M phase? A. G₁ cells are larger and more likely to perform the normal functions of the cell. B. G₁ cells have not replicated their DNA in preparation for division. C. G₁ cells are the only ones that do not have their chromatin in a highly condensed state. D. MPF is required to enter S phase, so the cell is committed to entering M phase if the cycle moves beyond G₁. How many does the chromosome number of the species A. Is equal to the diploid chromosome number. B. Refers to the chromosome number of the somatic cell. C. Is a constant number for the organisms of the species generation after generations. D. All of the above. Which statement about the daughter cells following mitosis and cytokinesis is correct? A. They are genetically different from each other and from the parent cell. B. They are genetically identical with each other and with the parent…arrow_forwardThe nuclear matrix composition: a. lamina, nucleosome b. cortex, lamina, c. nucleosome d. lamina, interchromatin networkarrow_forwardWhich of the following is true of normal adult cells but NOT cancer cells? A. Cell death after a finite number of cell divisions B. Contact with other cells increases likelihood of division C. Large amount of telomerase present D. Do not care about cell density while culturearrow_forward
- The numbered events listed below participate in the generation of junctional diversity. Put them in chronological order. a. DNA strands pair, and unpaired nucleotides are removed by exonuclease activity. b. P-nucleotides are generated after nicking of one DNA strand. c. DNA polymerase fills in gaps, and DNA ligation forms a coding joint. d. The RAG complex cleaves heptamer RSSs, and DNA hairpins are formed. e. Terminal deoxynucleotidyl transferase adds N-nucleotides to the 3ʹ end of the stretch of P-nucleotides.arrow_forwardHypothetically, a cell has DNA that weighs 10 picograms. This cell goes through S phase and is about to undergo mitosis. How much does the DNA of this cell weight now? How much would the DNA of the two cells produced at the end of mitosis weigh? Explain your reasoning.arrow_forwardWhich of the following cell types will most likely reach cell senescence after many rounds of replication? A. Adult stem cells B. Cancer cells C. Normal adult somatic cells D. Embryonic stem cellsarrow_forward
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