Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 7TYU
Why are proteins not considered to be a good candidate for the firstliving molecule?
a. Their catalytic capability is not sufficient for most biological reactions.
b. Their amino acid monomers were not likely present in the prebioticsoup.
c. They cannot serve as a template for replication.
d. They could not have
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. How does the double helix structure of DNA support itsrole in encoding the genome?a. The sugar-phosphate backbone provides a templatefor DNA replication.b. tRNA pairing with the template strand createsproteins encoded by the genome.c. Complementary base pairing creates a very stablestructure.d. Complementary base pairing allows for easyediting of both strands of DNA.
What is the major role of DNA polymerase in the DNA replication?
a. Attached RNA primers to initiate the addition of complementary nucleotide sequence at the 5’ to 3’direction
b. Adds up new complementary nucleotide sequence at the 3’ to 5’ direction of the DNA template.
c. Unwinds the double helix by breaking the bonds at the 3’ to 5’ polymerization activity.
d.It transiently cuts each strand to prevent supercoil at the 5’ to 3’ polymerization activity complementary to the RNA strand
In the dideoxy-sequencing reaction, what terminates DNA synthesis at a particular base? a. The absence of a base on the ddNTP halts the DNA polymerase. b. The ddNTP causes a break in the sugar–phosphate backbone. c. DNA polymerase will not incorporate a ddNTP into the growing DNA strand. d. The absence of a 3′-OH group on the ddNTP prevents the addition of another nucleotide.
Chapter 3 Solutions
Biological Science (7th Edition)
Ch. 3 - 1. What two functional groups are bound to the...Ch. 3 - What type of information is used to direct...Ch. 3 - Prob. 5TYUCh. 3 - Prob. 6TYUCh. 3 - 7. Why are proteins not considered to be a good...Ch. 3 - Prob. 9TYPSSCh. 3 - Prob. 12PIATCh. 3 - Prob. 13PIATCh. 3 - Recall that proline often introduces kinks in the...Ch. 3 - SOCIETY Based on the experiment in question 15,...
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- The nucleotides from a bacterial cell were found to have the following abundances: 39% uracil; 41% adenine, 9% cytosine; 8% guanine. What type of molecule is the genome of the bacteria likely made of? a. Double stranded DNA b. Single stranded DNA c. Messenger RNA d. Double stranded RNAarrow_forwardWhat observations are consistent with the conclusion that DNA serves as the genetic material in eukaryotes? Select the four correct statements. a. DNA content and ploidy in various cell types( sperm and somatic cells) are related b. DNA is found to be the only macromolecule in eukaryotes that has different subunits. c. Gene transfer is a direct evidence as it has been facilitated by recombinant DNA techniques. d. The correlation of the action and absorption spectra of ultraviolet light support the interpretation that DNA is a genetic material. e. DNA is shown to be present in ribosomes, matrix, and nucleus, where genetic function is performed. f. DNA is shown to be present in mitochondria, chloroplasts, and nucleus, where genetic function is performed.arrow_forwardWhat is the correct chronological order of the initiation of DNA replication? A. Hydrogen bonds between complementary base pairs are broken at origin of replication B. Primase binds to the site of origin. C. DNA polymerase binds to the template strand. D. An RNA primer is synthesized. E. Incoming deoxynucleoside triphosphates are added to the growing strand.arrow_forward
- What 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_forwardRNA can function: please explain your answer a.A) as a non-permanent template to synthesize protein b.B) to recruit the correct amino acid during translation c.C) as part of ribosomes to synthesize protein d.D) to help initiate DNA synthesis during replication e.Only A and C Only A, B and C A, B, C and Darrow_forwardA fragment of DNA has the sequence 5'-ATCCGCT-3'. Following DNA replication, the complementary strand is 3'-TAAGCGA-5'. What type of mutation occurred? a. Frameshift b. Transversion c. Pyrimidine dimer d. Transitionarrow_forward
- Which of the following statements is a lie? Select one: a. In humans, the genetic code is stored in 46 double-stranded DNA molecules. b. DNA packaging of prokaryotes into compact sizes is distinct to eukaryotic DNA packaging. c. Plasmids cause bacterial mutation and diversification thus they are essential components for cellular reproduction.arrow_forwardWhat is DNA polymerase? a.An enzyme that carries out DNA replication b.Short, single strand of DNA that base-pairs with a specific DNA sequence c.An enzyme that corrects mutations that arise during the replication of DNA d.An enzyme that seals any gaps that remain between bases of replicating strands of DNAarrow_forwardDNA strands are anti-parallel and DNA polymerase can only synthesize DNA in a 5' to 3' direction. How does the enzyme synthesize both strands at the same time? A. The leading strand is sythesised in Okazaki fragments B. The lagging strand is synthesised in short Okazaki fragments. C. Only one strand is replicated. D. There are more than one DNA polymerase involved.arrow_forward
- Which of the following statements accurately describes the process of DNA replication? A. The two strands of DNA separate, and a single new strand is synthesized using the existing strand as a template. B. The two strands of DNA separate and serves as a template, and the daughter molecule will have a mix of an old and new strand. C. The two strands of DNA separate and serves as a template, and the daughter molecule will have one old strand and one new strand. D. The two strands of DNA separate, and each strand serves as a template for the synthesis of multiple new complementary strands.arrow_forwardLevene proposed that DNA was a tetranucleotide, meaning ___. A. it was made up of the same 4 bases bonded together in the same order B. it was made up of the same 4 bases bonded together in different orders C. it was made up of the same 4 amino acids bonded together in the same order D. it was made up of the same 4 sugars bonded together in different ordersarrow_forwardThere may be multiple answers to each question.arrow_forward
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