Concept explainers
If a parental DNA strand has the base sequence A-T-T-G-C-A-C-T, DNA polymerase would synthesize a new strand with the sequence
- a. A-T-T-G-C-A-C-T.
- b. T-A-A-C-G-T-G-A.
- c. C-G-G-T-A-C-A-G.
- d. The sequence of the new strand cannot be determined from the information given.
Introduction:
DNA is “Deoxyribonucleic acid” as it serves as the genetic material for all eukaryotic and prokaryotic cell. It carries all the information which is required for proper growth, development, in an organism.
Answer to Problem 1MC
Correct answer:
DNA polymerase would synthesize a new strand with the sequence
Option (b). is given as “
Explanation of Solution
Justify reasons for the correct statement:
If the parent strand is having
Hence, option (b). is correct.
Justify reasons for the incorrect statements:
Option (a) is given as “
DNA is a double helical structure in which the two strands are complementary to each other. Adenine always bonds with thymine and guanine always binds with cytosine. Hence, it is a wrong answer.
Option (c) is given as “
The two DNA strands are complementary to each other and adenine always paired with thymine, not with cytosine. Hence, it is a wrong answer.
Option (d) is given as “The sequence of the new strand cannot be determined from the information given”.
The new sequence form is
Hence, options (a), (c,) and (d) are incorrect.
The new strand of DNA formed by DNA polymerase enzyme is
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Chapter 12 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
- Write the sequence of a strand of DNA replicated using each of the following base sequences as a template: a. T C G A G A A T C T C G A T T b. C C G T A T A G C C G G T A C c. A T C G G A T C G C T A C T Garrow_forwardWhat is the role of DNA polymerase in DNA replication? O A. DNA polymerase replicates tRNA, mRNA and rRNA B. DNA polymerase adds A-U-G-C as compliments to the original DNA strand to make an identical copy. O C. DNA polymerase "unzips" the DNA D. DNA polymerase adds complimentary free nucleotides to the original strand to make and identical copy. Submit Clear form Never submit passwords through Google Forms. This form was created inside of East Baton Rouge Parish Schools. Report Abuse Google Formsarrow_forwardWhich statement about Okazaki fragments is true? Select one: a. DNA polymerase doesn’t need a primer to build these fragments b. They act as a primer that initiates DNA replication. c. They correct errors made during earlier phases of DNA replication. d. They are necessary because DNA polymerase can only build DNA in the 5’ to 3’ direction, so for one of the strands at each fork, the DNA polymerase can only buildaway from the fork. e. They prevent the ends of chromosomes from shortening with every replication.arrow_forward
- A primer is laid down complementary to the DNA sequence TAGCAATCGCA to prime synthesis of a daughter strand. What will the sequence of the primer be? A. ATCGTTAGCGT B. ATGGTTAGGGT C. AUCGUUAGCGU D. AUCGTUAGCGTarrow_forwardDNA polymerases make errors in matching as DNA is synthesized. These errors can be detected and repaired by: A. Ligase B. DNA polymerase C. Primase D. Helicasearrow_forwardBelow are DNA strands. Make the complementary DNA strand: Original Strand: 5’ A T G C A A A T T G C T C A C C G G G G A T C A G C A C 3’ Complementary Strand: Original Strand: 3’ A G G G G A T C A G C A C C G G A T T T C A T G A G C C 5’ Complementary Strand:arrow_forward
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