Homework Answers
Answer : C ; A-DNA and Z-DNA are right handed helices, while B-DNA is left handed.
Explanation : In that case we know that A-DNA is a rare type of structural confirmation that a DNA can adopt under dehydrating conditions. A-DNA is a right handed helix. B-DNA is the most common and predominant type of structural confirmation of DNA in the cells. The B-DNA form under the natural physiological conditions in the cell. B-DNA is a right handed helix. Z-DNA is a left-handed double helical conformation of DNA in which the double helix winds to the left in a zig-zag pattern.
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Which of the following statements concerning the various forms of DNA is incorrect? a. B-DNA is...
How many hydrogen bonds exist between this DNA strand and its complementary strand? 5'-AGGCCTT-3 Number As...
How many hydrogen bonds exist between this DNA strand and its complementary strand? 5'-AGGCCTT-3 Number As a result of rotation about six of its bonds, DNA can exist in a variety of forms. Determine whether each of the following images and properties describes the A form, B form, or Z form of DNA. A form B form Z form All antiparallel strands left-handed C-3' of deoxyribose 18.4 A is out of the plane of helix diameter the other ring atoms...
Question 22 (1 point) Which of the following statements concerning codons is incorrect? a) They are...
Question 22 (1 point) Which of the following statements concerning codons is incorrect? a) They are short segments of a gene. b) They are sequences of three nucleotides. c) There are 64 of them. d) They are found within MRNA molecules Question 23 (1 point) Which of the following bonds is associated with lipids? a) Peptide b) Ester c) Hydrogen d) A-1,4-glycosidic
Question 15 (1 point) Which one of the following statements concerning carbohydrates is incorrect? a) Type...
Question 15 (1 point) Which one of the following statements concerning carbohydrates is incorrect? a) Type 1 diabetes mellitus is considered "insulin-dependent" diabetes and typically appears in juvenile patients. b) Glycolysis produces pyruvate, which is converted to acetyl CoA, and via the Krebs' cycle, forms ATP. The process of glycogen formation occurring in the liver and skeletal muscle is referred to as glycogenolysis. d) Monosaccharides are formed from the breakdown of starches and disaccharides in the small intestine. Question 16...
Which of the following statements is incorrect concerning balance sheets prepared under IFRS and GAAP? A)...
Which of the following statements is incorrect concerning balance sheets prepared under IFRS and GAAP? A) The same elements are used in preparing balance sheets under both GAAP and IFRS. B) Under IFRS stockholders' equity is listed before liabilities, while under GAAP liabilities are listed before stockholders' equity. C) Under GAAP assets are usually listed in increasing order of liquidity, while under IFRS assets are usually listed in decreasing order of liquidity. D) Under GAAP current items are presented first,...
8. Which of the following is incorrect concerning σ32? a. Translated σ32 associates with DnaJ and...
8. Which of the following is incorrect concerning σ32? a. Translated σ32 associates with DnaJ and DnaK under normal growth conditions b. σ32 is transcribed regularly at all temperatures c. σ32 leads to the transcription of proteins to help combat denaturation d. σ32 outcompetes σ70 binding to the RNA polymerase at elevated temperatures e. Access to the RBS for σ32 is blocked by secondary structure at elevated temperatures 6. Which of the following concerning the lac operon is incorrect? a. lacI...
36. Which statement is true about Nucleic Acids? a) DNA is a protein b) DNA is...
36. Which statement is true about Nucleic Acids? a) DNA is a protein b) DNA is identical to RNA C) RNA has the structure of a double helix, d) RNA binds to DNA but not to amino acids. e) None of these are true. 37. Which is true for DNA, RNA and Polypeptides? a) They all have R groups, b) They are formed from ribose by dehydration synthesis. c) They all have subunits that include nitrogenous bases. d) They were...
3. Which of the following statements concerning HIV infection of host cells is incorrect? a. HAART...
3. Which of the following statements concerning HIV infection of host cells is incorrect? a. HAART is the most successful treatment that directly reduces viral load and disease symptoms b. No vaccine is currently available c. HIV cripples the immune system by infecting CD8+ T cells d. A small percentage of the population has a CCR5 mutation, making them resistant to HIV infection
3. Which of these is/are true in DNA replication? 1. Helicase produces replications forks.
3. Which of these is/are true in DNA replication? 1. Helicase produces replications forks. 2. New histones are imported into the nucleus shortly after replication is complete. 3. DNA polymerase moves along a replication fork, making a new DNA molecules. 4. At the completion of replication, two molecules of DNA made from free nucleotides are formed. (A) 1 & 3 (B) 2 & 4 (C) 1, 2, 3, (D) 4 only; (E) all of the above _____ 24. Which of...
Which of the following statements concerning performance reports is incorrect? A. The activity level used to...
Which of the following statements concerning performance reports is incorrect? A. The activity level used to populate the flexible budget is based on the actual “units.” B. The master budget and the flexible budget use the same cost behavior equation to calculate budgeted expenses. C. All unfavorable flexible budget variances should be investigated. D. A favorable sales revenue flexible budget variance would indicate that the actual sales price was higher than the sales price used in the master budget. E....
4. The basie differences between RNA and DNA are a. the organic bases only b. bases, ribose uaits...
4. The basie differences between RNA and DNA are a. the organic bases only b. bases, ribose uaits, and the phosphodiester linkage c. bases, ribose units, and the glycosidic bond type bases and the ribose units oaly 5. The solubility characteristics of the pyrimidine or purine bases and the corresponding nucleosides differ greatly. Which of the following statements is not true? a. purine bases are quite soluble in water b, nucleosides are much more soluble than the corresponding bases c....
How many hydrogen bonds exist between this DNA strand and its complementary strand? 5'-AGGCCTT-3 Number As a result of rotation about six of its bonds, DNA can exist in a variety of forms. Determine whether each of the following images and properties describes the A form, B form, or Z form of DNA. A form B form Z form All antiparallel strands left-handed C-3' of deoxyribose 18.4 A is out of the plane of helix diameter the other ring atoms...
Question 22 (1 point) Which of the following statements concerning codons is incorrect? a) They are short segments of a gene. b) They are sequences of three nucleotides. c) There are 64 of them. d) They are found within MRNA molecules Question 23 (1 point) Which of the following bonds is associated with lipids? a) Peptide b) Ester c) Hydrogen d) A-1,4-glycosidic
Question 15 (1 point) Which one of the following statements concerning carbohydrates is incorrect? a) Type 1 diabetes mellitus is considered "insulin-dependent" diabetes and typically appears in juvenile patients. b) Glycolysis produces pyruvate, which is converted to acetyl CoA, and via the Krebs' cycle, forms ATP. The process of glycogen formation occurring in the liver and skeletal muscle is referred to as glycogenolysis. d) Monosaccharides are formed from the breakdown of starches and disaccharides in the small intestine. Question 16...
36. Which statement is true about Nucleic Acids? a) DNA is a protein b) DNA is identical to RNA C) RNA has the structure of a double helix, d) RNA binds to DNA but not to amino acids. e) None of these are true. 37. Which is true for DNA, RNA and Polypeptides? a) They all have R groups, b) They are formed from ribose by dehydration synthesis. c) They all have subunits that include nitrogenous bases. d) They were...
3. Which of the following statements concerning HIV infection of host cells is incorrect? a. HAART is the most successful treatment that directly reduces viral load and disease symptoms b. No vaccine is currently available c. HIV cripples the immune system by infecting CD8+ T cells d. A small percentage of the population has a CCR5 mutation, making them resistant to HIV infection
4. The basie differences between RNA and DNA are a. the organic bases only b. bases, ribose uaits, and the phosphodiester linkage c. bases, ribose units, and the glycosidic bond type bases and the ribose units oaly 5. The solubility characteristics of the pyrimidine or purine bases and the corresponding nucleosides differ greatly. Which of the following statements is not true? a. purine bases are quite soluble in water b, nucleosides are much more soluble than the corresponding bases c....
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