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 11QP
Polynucleotide chains have a 5′ and a 3′ end. Which groups are found at each of these ends?
- a. 5′ sugars, 3′ phosphates
- b. 3′ OH, 5′ phosphates
- c. 3′ base, 5′ phosphates
- d. 5′ base, 3′ OH
- e. 5′ phosphates, 3′ bases
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Considering the principle of complementary base pairing, you would expect an equal ratio of which two nitrogenous bases in a DNA molecule?
a.
guanine and thymine
b.
uracil and adenine
c.
thymine and cytosine
d.
cytosine and guanine
e.
adenine and guanine
Ethidium Bromide is a chemical reagent that has been used to detect the presence of nucleic acids. It is known to fluoresce under UV light and the intensity of the fluoresence increases when it binds to the nucleic acids. Ethidium Bromide binds to polynucleotides
a
by binding directly to the bases on one of the strands.
b
by intercalating itself between the base pair stacks.
c
through the negatively charged phosphate groups.
d
through the hydroxyl group of the sugar molecule.
Identify the base and sugar in each of the following nucleotides:
A. CMP
B. dAMP
C. dTMP
D. UMP
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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- Draw and label the dinucleotide AT as follows: A. 5’ and 3’ ends B. Phosphodiester bond C. N-glycosidic bondsarrow_forwardWhat forces hold the two individual strands of DNA together to form a double helix? a. ionic bonds b. covalent bonds c. hydrophobic bonds d. hydrogen bonds e. no correct responsearrow_forwardWhich of the following is true about the structure of nucleotides? A. Purine nucleotides cannot base pair with pyrimidine nucleotides. B. Pyrimidine bases are larger than purine bases. C. Purine and pyrimidine bases are found in DNA and RNA. D. Thymine base is found in DNA and RNA.arrow_forward
- Draw the structure of each dinucleotide and identify the 5 'and 3 ' ends. a. the deoxyribonucleotide formed by joining two deoxyguanosine 5 '-phosphates together b. the ribonucleotide formed by joining the 5 '-phosphate of UMP with the 3 '-OH of AMParrow_forwardA nucleotide is composed of all of the following excepta. 5-carbon sugar. c. 6-carbon sugar.b. nitrogen base. d. phosphate grouparrow_forwardRoughly how many amino acids are there in one turn of an alpha helix? Select one: A. 2.8 B. 4.2 C. 3.6 D. 1arrow_forward
- Which of the following is not a nucleotide? a. adenosine triphosphate b. adenosine diphosphate c. adenine d. cytosine e. arabinosearrow_forwardIf C +T/A + G equals 0.5 in one strand, what is the ratio of these bases in the complementary strand? A. 0.25 B. 0.5 C. 1 D. 2 E. 4arrow_forwardWhat type of interaction between the base pairs serves as the "glue" to keep the two DNA strands together? O A. hydrogen bonding B. covalent bonding O C. ion-dipole interactions D. ionic bonding O E. London dispersion forcesarrow_forward
- Which of the following correctly describes a structural feature of DNA or RNA? a. RNA may fold into complex three-dimensional structures necessary for its activity b. RNA & DNA are both usually double stranded c. DNA tends to fold into complex three-dimensional structures required for its activity d. DNA contains a pentose sugar with a hydroxyl group in the 2' positionarrow_forwardAn analysis of the bases in DNA present in body cells gave the following results: W units/g X units/g Y units/g Z units/g 31 45 45 31 The correct identification of each base would be: W Y Z A. adenine guanine B. cytosine adenine C. guanine D. thymine Select one: a. C b. D c. B d. A X thymine guanine thymine cytosine cytosine guanine cytosine thymine adenine adeninearrow_forwardWhat is the hydrogen bonding pattern within an alpha helix? a. Lone pair on C=O of residue i to hydrogen on N-H of residue i+3. b. Lone pair on C=O of residue i to hydrogen on N-H of residue i+4. c. Hydrogen of N-H of residue i to hydrogen on N-H of residue i+3. d. Lone pair on C=O of residue i to hydrogen on N-H of residue i+2.arrow_forward
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