Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 4TYK
Which of the following rules apply to the synthesis of
a.
b. The synthesis of nucleic acids cannot occur without the presence of an enzyme to catalyze the reaction.
c. Strands are synthesized in a parallel direction such that one end of the double-stranded product has the 3' ends and other has the 5' ends.
d. Complementary pairing between bases is required for copying nucleic acids.
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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.
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.
The following is diagram of a generalized tetranucleotide. Carbons exist at corners on the shapes and phosphate
groups are filled circles.
A. Is this a DNA or an RNA Molecule?
B. Where is the 3’ end of this tetranucleotide?
C. Given that the DNA strand which served as a template for the synthesis of this
tetranucleotide was composed of the bases 5’-ACAG-3’, where are the expected bases?
Chapter 4 Solutions
Biological Science
Ch. 4 - What are the four nitrogenous bases found in RNA?...Ch. 4 - 2. What determines the primary structure of a DNA...Ch. 4 -
4. Which of the following rules apply to the...Ch. 4 - Prob. 3TYKCh. 4 - Prob. 5TYKCh. 4 -
6. What is responsible for the increased...Ch. 4 - Prob. 8TYUCh. 4 - Prob. 9TYUCh. 4 - Prob. 7TYUCh. 4 - Prob. 10TYU
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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
- Identify the base and sugar in each of the following nucleotides: A. CMP B. dAMP C. dTMP D. UMParrow_forwardWhich of the following conventions is used to specify the sequence of bases in DNA a) The sequence begins with the nucleotide that has a free 3' terminus b) The sequence begins with the nucleotide that has a free 5' terminus c) The sequence begins from the end closest to the first adenine d) The sequence begins from the end closest to the first thyminearrow_forwardThe formation of deoxyribonucleotide from ribonucleotide requires all the following except: a.Nucleoside diphosphate (NDP) b. Nucleoside triphosphate (NTP) c.Thioredoxin d. Ribonucleotide reductasearrow_forward
- Which of the following nucleotides is mostly likely to form pyrimidine dimers? a. dATP b. dTTP c. dCTP d. dGTP e. dUTParrow_forwardIndicate whether each of the following statements about the double-helix secondary structure of DNA is true or false. a. The two polynucleotide strands are complementary rather than identical. b. Bases present extend outward from the double helix. c. Covalent bonding occurs between the two polynucleotide strands. d. The two polynucleotide strands run in the 5′-to-3′ directionarrow_forwardWhen comparing the structures of RNA and DNA , which of the following statement is True?A-Only RNA contains 3'-deoxyribise rings B-Both RNA and DNA contain 3'-deoxyribise rings C-Only DNA contains 3'- deoxyribise rings D-Neither RNA or DNA contain 3'-deoxyribise ringsarrow_forward
- Which of the following statements are TRUE?I. DNA replication is a semiconservative process wherein the two resulting double helices consist of one new strand and one parental strand.II. The DNA strand that is used to make a complementary daughter strand is called the parental strand.III. The precursor of each new nucleotide in the DNA strand is a deoxynucleoside 3′-triphosphate.IV. The incoming nucleotide always attaches to 5′-phosphate of the previously added nucleotide a. I only b. II only c. I and IV d. III and IVarrow_forwardWhich of the following statements are TRUE?I. DNA replication is a semiconservative process wherein the two resulting double helices consist of one new strand and one parental strand.II. The DNA strand that is used to make a complementary daughter strand is called the parental strand.III. The precursor of each new nucleotide in the DNA strand is a deoxynucleoside 3′-triphosphate.IV. The incoming nucleotide always attaches to 5′-phosphate of the previously added nucleotidearrow_forwardDraw and label the dinucleotide AT as follows: A. 5’ and 3’ ends B. Phosphodiester bond C. N-glycosidic bondsarrow_forward
- Which of the following is the correct way that heterocyclic bases are paired between two polypeptide chains of DNA? a. Pyrimidines-Pyrimidines b. Purine-Pyrimidine c. Purines-Purine d. Sugar-Phosphatearrow_forwardTell whether the following elements are found on DNA or RNA: a. 5' methylguanylate Cap b. Operator c. -35 regionarrow_forwardThe following are all true of RNA, excepta. it is a single-stranded molecule existing in helical form. b. it contains uracil rather than thymine as the complementary base-pairing mate for adenine.c. uracil does not follow the pairing rules;therefore, the inherent DNA code ischanged.d. the sugar in RNA is ribose rather than deoxyribosearrow_forward
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