BIOLOGY
5th Edition
ISBN: 9781264104680
Author: BROOKER
Publisher: MCG
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Chapter 3, Problem 10TY
Summary Introduction
Introduction: Four types of bases are present in DNA (Deoxyribose
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Check out a sample textbook solutionStudents have asked these similar questions
If one of the strands in DNA is made up of 10%
guanine, what will be the composition of the DNA?
A. 10% C
B. 40% U
C. 10% C in its complementary strand
D. 40% A + T
O E. cannot be determined
An 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
adenine
Which of the following statements about nucleic acids is not correct?
Select one:
A.
In DNA the distance between the strands of the double helix is relatively constant.
B.
The growing DNA polymer is synthesized in the 5' to 3' direction.
C.
The enzymes that catalyze DNA synthesis are known as DNA polymerases.
D.
RNA strands are synthesized in the 3' to 5' direction.
E.
Unlike DNA, RNA is easily cleaved because the 2'-OH group of the ribose is a nucleophile that catalyzes hydrolysis of the strand.
Chapter 3 Solutions
BIOLOGY
Ch. 3.4 - Prob. 1CCCh. 3.4 - What type of reaction is the reverse of the one...Ch. 3.4 - Prob. 1CSCh. 3.5 - Prob. 1CCCh. 3.5 - Prob. 1CSCh. 3.6 - How many water molecules would be produced during...Ch. 3.6 - Prob. 2CCCh. 3.6 - Prob. 1EQCh. 3.6 - Prob. 2EQCh. 3.6 - CoreSKILL Explain the result that was crucial to...
Ch. 3.7 - Prob. 1CCCh. 3 - Molecules that are found in living cells and...Ch. 3 - The versatility of carbon that allows it to serve...Ch. 3 - Prob. 3TYCh. 3 - Prob. 4TYCh. 3 - Prob. 5TYCh. 3 - In contrast to other fatty acids, essential fatty...Ch. 3 - Prob. 7TYCh. 3 - The monomers of proteins are ___________, and...Ch. 3 - Prob. 9TYCh. 3 - Prob. 10TYCh. 3 - Explain the similarities and differences between...Ch. 3 - Prob. 2CQCh. 3 - Prob. 3CQCh. 3 - Discuss the differences between the various types...Ch. 3 - Prob. 2COQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A nucleotide is composed of all of the following excepta. 5-carbon sugar. c. 6-carbon sugar.b. nitrogen base. d. phosphate grouparrow_forwardWhich of the following statement for the B-DNA helix is NOT true? a. It is a left-handed helix. b. Planes of bases are nearly perpendicular to the helix axis. c. Sugars are in the 2’-endo conformation. d. Bases are in the anti conformation. e. It is a common form of duplex DNA solution.arrow_forwardHelicase unwinds DNA by disrupting... A. Covalent bonds B. Hydrogen bonds C. A and B D. Neither A nor Barrow_forward
- DNA is less susceptible than RNA to alkaline hydrolysis. Which of the following is the most appropriate explanation? A. DNA is double-strand while RNA is single-stranded. B. DNA has a 2' hydrogen while RNA has a 2' hydroxyl group. C. DNA has tertiary structure while RNA does not have. D. DNA includes thymine bases while RNA includes uracil bases. E. DNA is in nucleus while RNA is not.arrow_forwardAccording to Chargaff’s rules for DNA base composition, if a DNA sample contained 10% guanine, the sample should have: A. 40% cytosine B. 90% cytosine C. 10% adenine D. 40% thyminearrow_forwardWhich of the following relations or ratios would be true for a doublestranded DNA molecule? a. A + T = G + C b. A + T = T + C c. A + C = G + T d. A + TC + G = 1.0 e. A + GC + T = 1.0 f. AC = GT g. AG = CT h. AT = GCarrow_forward
- Which of the following is not a nucleotide? a. adenosine triphosphate b. adenosine diphosphate c. adenine d. cytosine e. arabinosearrow_forwardWhich of the following nucleotides is mostly likely to form pyrimidine dimers? a. dATP b. dTTP c. dCTP d. dGTP e. dUTParrow_forwardWhich 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_forward
- The phosphodiester bond in DNA links: a. The 2’ carbon of the ribose to the 3’ carbon of the subsequent ribose. b. The 3’ carbon of the ribose to the 5’ carbon of the subsequent ribose. c. The 3’ carbon of the ribose to the 2’ carbon of the subsequent ribose. d. The 2’ carbon of the ribose to the 5’ carbon of the subsequent ribose. e. The 1’ carbon of the ribose to the 5’ carbon of the subsequent ribose.arrow_forwardMany diseases, cancers and even normal human variations can be caused by mutations and variations in the DNA nucleotide sequence. The most likely immediate result of DNA having a different nucleotide sequence is that Group of answer choices a, no direct result of change in the protein molecule would occur if DNA is mutated b, the protein resulting from the DNA mutation would be denatured and nonfunctional c, the primary structure of amino acid sequence in a protein would be altered. d the peptide bonds in the protein would by hydrolyzed and the protein would fall apartarrow_forwardIf the DNA of an organism contains 20% adenine, what is its percentage of guanine? a.20% b.60% c.80% d.30%arrow_forward
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