BIOLOGY -LAB.MAN. >CUSTOM<
12th Edition
ISBN: 9781259754661
Author: Mader
Publisher: MCG CUSTOM
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Textbook Question
Chapter 12, Problem 2A
The double helix model of DNA resembles a twisted ladder in which the rungs of the ladder are
a. a purine paired with a pyrimidine.
b. A paired with G and C pared with T.
c. sugar-phosphate paired with sugar-phosphate.
d.a 5' end paired with a 3' end.
e. Both a and b are correct.
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The double-helix model of DNA resembles a twisted ladder inwhich the rungs of the ladder area. a purine paired with a pyrimidine.b. A paired with G, and C paired with T.c. sugar-phosphate paired with sugar-phosphate.d. a 5′ end paired with a 3′ end.e. Both a and b are correct.
How is each new nucleotide added to the growing end of a DNA strand?
a.
A dehydration reaction joins the monomer to the new strand
b.
By using DNA polymerase
c.
Both of the above
d.
A hydrolytic reaction joins the monomer to the new strand
The antiparallel nature of DNA refers to
a. its charged phosphate groups.
b. the pairing of bases on one strand with bases on the other strand.
c. the formation of hydrogen bonds between bases from opposite strands.
d. the opposite direction of the two strands of nucleotides.
Chapter 12 Solutions
BIOLOGY -LAB.MAN. >CUSTOM<
Ch. 12.1 - Prob. 1CYPCh. 12.1 - Prob. 2CYPCh. 12.2 - Prob. 1CYPCh. 12.2 - Prob. 2CYPCh. 12.2 - Prob. 3CYPCh. 12.3 - Prob. 1CYPCh. 12.3 - Describe the three major classes of RNA; what is...Ch. 12.3 - Prob. 3CYPCh. 12.4 - Prob. 1CYPCh. 12.4 - Describe the three major modifications that occur...
Ch. 12.4 - Prob. 3CYPCh. 12.4 - Prob. 4CYPCh. 12.5 - Prob. 1CYPCh. 12.5 - Prob. 2CYPCh. 12.5 - Prob. 3CYPCh. 12 - Prob. 1NS.1QCCh. 12 - Prob. 1NS.2QCCh. 12 - Prob. 1ACh. 12 - The double helix model of DNA resembles a twisted...Ch. 12 - Prob. 3ACh. 12 - Prob. 4ACh. 12 - Prob. 5ACh. 12 - Prob. 6ACh. 12 - 7. The central dogma of molecular biology
a....Ch. 12 - Prob. 8ACh. 12 - Prob. 9ACh. 12 - Prob. 10ACh. 12 - Prob. 11ACh. 12 - Prob. 12ACh. 12 - Prob. 1TSCh. 12 - Prob. 2TSCh. 12 - Prob. 3TSCh. 12 - Prob. 4TS
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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
- The DNA of different species differs in the (a) sequence of bases. (b) complementary base-pairing. (c) number of nucleotide strands. (d) location of the sugar-phosphate portion of the DNA molecule.arrow_forwardHow are nucleotides connected to each other in a single strand of DNA? A. The nitrogenous bases and acids link the separate nucleotides into a chain. B. The phosphate group of one nucleotide binds to the sugar on the next nucleotide. C. The hydroxy group of one nucleotide stabilizes the phosphate group of the adjacent nucleotide. D. The sugar of one nucleotide binds directly to the sugar of the adjacent nucleotide.arrow_forwardWhat are major functions that DNA polymerase performs? A. unzips the DNA strand and makes the new nucleotides B. proof reads the new DNA strands for errors and corrects them C. bonds the nucleotides together forming the new DNA strand D. A, B, and C E. A and B F. B and C G. A and Carrow_forward
- The backbone of DNA molecule is made of? a. nucleotides b. alternating phosphates and bases c. alternating bases and sugars d. alternating sugar and phosphate moleculesarrow_forwardModels of real-world phenomena can reveal important links between structure and function in biology. Describe how the structure of DNA revealed by theWatson and Crick model suggests how it functions in living things.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_forward
- In a DNA strand, a phosphate connects a 3′ carbon atom in onedeoxyribose toa. a 5′ carbon in an adjacent deoxyribose.b. a 3′ carbon in an adjacent deoxyribose.c. a base in an adjacent nucleotide.d. none of the above.arrow_forwardWhich of the following would be most likely to cause a mutation? A. the addition of nucleotides to the 3’ end of the growing strand B. the insertion of a mismatched nucleotide into a DNA strand C. the unwinding of the DNA strand D. the synthesis of short stretches of DNAarrow_forwardDuring DNA replication, the helicase enzyme binds to DNA and Select one: a. prevents the DNA strands from rewinding back into the helical shape b. cuts the double stranded DNA into single strands c. provides the starting point where new nucleotides can be added d. adds new nucleotides to the template strandarrow_forward
- Which is a difference between B-DNA and A-DNA? A. For polynucleotide strands containing the same number of nucleotides, the B-DNA strand will be shorter from end-to-end than the corresponding A-DNA. B. Both are helical, but B-DNA is right-handed and A-DNA is left-handed. C. The sugar in A-DNA is more oxidized than that in B-DNA D. Helical structures in RNA predominantly adopt the B-DNA conformation. E. None of the above. The tetranucleotide AGTC (in DNA) has a free hydroxyl group on ____. A. A B. G, T, and C C. C D. A, G, T, and Carrow_forwardWhat is the structure of a DNA molecule? A. Two nucleotide strands coiled into a double helix held together by bonds between internal nucleotide bases B. Three nucleotide strands coiled into a triple helix held together by bonds between internal nucleotide bases C. Two nucleotide strands coiled into a double helix held together by bonds between external nucleotide bases D. A single nucleotide strand held together by bonds between internal nucleotide basesarrow_forwardWhat is DNA polymerase? A. An enzyme that corrects mutations that arise during the replication of DNA B. An enzyme that seals any gaps that remain between bases of replicating strands of DNA C. Short, single strand of DNA that base-pairs with a specific DNA sequence D. An enzyme that carries out DNA replicationarrow_forward
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