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 1QP
Until 1944, which cellular component was thought to carry genetic information?
- a. carbohydrate
- b.
nucleic acid - c. protein
- d. chromatin
- e. lipid
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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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- Treating a cell with a drug to stop tRNA from doing its job would mean what? A. that ribosomes would fall apart B. that sugars would not be added to proteins C. that nothing would be available to translate D. that amino acids would not be brought to the growing proteinarrow_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_forwardThe DNA in a cell associates with proteins to form chromatin. What is a nucleosome?arrow_forward
- What can you infer about a high molecular weight protein that cannot be transported into the nucleus? A. It contains errors in the amino acid sequence B. It lacks a signal sequence C. It is too large D. It lacks a nuclear localization signal (NLS)arrow_forwardWithin the Central Dogma, what is the primary function of DNA? a. make proteins b. preserve nuclear integrity c. maintain the genetic information d. keep a boundary between RNA and Proteinarrow_forwardWhy was the cold ethanol added to the soap and salt mixture? A To digest the cell walls B To dissolve the RNA C To emulsify lipids and remove large cellular debris D To precipitate the DNA E To denature the cytoplasmic proteinsarrow_forward
- What happens to microtubules in the presence of very high levels of GTP? A. They will undergo treadmilling B. They will grow rapidly C. They become unstable and may undergo catastrophy D. They will shrinkarrow_forwardHow is a chromosome different from a chromatin? a.)A chromosome is a segment of DNA while chromatin is the DNA itself b.)A chromatin is a segment of DNA while chromosome is the DNA itself c.)Chromosome is tightly coiled DNA while chromatin is loosely coiled DNA d.)Chromatin is tightly coiled DNA while chromosome is loosely coiled DNAarrow_forwardThe first level of DNA organization in a eukaryotic cell is maintained by which molecule? a. cohesin b. condensin c. chromatin d. histonearrow_forward
- When 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_forwardWhat is the difference between chromatin and nucleosomes?arrow_forwardDNA plus associated proteins equal? a. chromatin b. chromosome c. chromatid d. nucleosomearrow_forward
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