Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 13.2, Problem 2TYK
Summary Introduction
Introduction:
The mutation can be described as a condition, in which the
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Which of the following is part of the elongation step of DNA synthesis?a. pulling apart the two DNA strandsb. attaching complementary nucleotides to the template strandc. untwisting the DNA helixd. none of the above
Which of the following can only arise as a spontaneous mutation?
Group of answer choices
Gamma rays penetrate tissue and damage DNA
Base analogs cause DNA to pair with the wrong base.
Reactive forms of oxygen damage DNA
In replication, thymine mispairs with guanine
Nitrous acid deaminates cytosine
Which of the following enzymes ensures that the correct base of a deoxynucleotide for growing the chain is aligned with template chain?
DNA gyrases
DNA ligases
DNA polymerases
primases
Chapter 13 Solutions
Principles of Biology
Ch. 13.1 - Prob. 1CCCh. 13.1 - Prob. 2CCCh. 13.1 - Prob. 1TYKCh. 13.1 - Prob. 2TYKCh. 13.2 - Prob. 1CCCh. 13.2 - Prob. 2CCCh. 13.2 - Prob. 1TYKCh. 13.2 - Prob. 2TYKCh. 13.3 - Prob. 1CCCh. 13.3 - Prob. 1TYK
Ch. 13.4 - Prob. 1CCCh. 13.4 - Prob. 1BCCh. 13.4 - Prob. 2CCCh. 13.4 - Prob. 3CCCh. 13.4 - Prob. 4CCCh. 13.4 - Prob. 1TYKCh. 13.4 - Prob. 2TYKCh. 13 - A mutation removes a single base pair within the...Ch. 13 - Prob. 2TYCh. 13 - Prob. 3TYCh. 13 - Prob. 4TYCh. 13 - Prob. 5TYCh. 13 - Prob. 6TYCh. 13 - Prob. 7TYCh. 13 - Prob. 8TYCh. 13 - Prob. 9TYCh. 13 - Prob. 10TYCh. 13 - Prob. 1CCQCh. 13 - Prob. 2CCQCh. 13 - Prob. 3CCQCh. 13 - Prob. 1CBQCh. 13 - Prob. 2CBQ
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- Cloning Genes Is a Multistep Process Which enzyme is responsible for covalently linking DNA strands together? a. DNA polymerase b. DNA ligase c. EcoRl d. restriction enzymes e. RNA polymerasearrow_forwardWhich of the following best describes the process of DNA sequencing? a. DNA is separated on a gel, and the different bands are labeled with fluorescent nucleotides and scanned with a laser. b. A laser is used to fluorescently label the nucleotides present within the DNA, the DNA is run on a gel, and then the DNA is broken into fragments. c. Nucleotides are scanned with a laser and incorporated into the DNA that has been separated on a gel, and then the DNA is amplified with PCR. d. Fragments of DNA are produced in a reaction that labels them with any of four different fluorescent dyes, and the fragments then are run on a gel and scanned with a laser. e. DNA is broken down into its constituent nucleotides, and the nucleotides are then run on a gel and purified with a laser.arrow_forwardWhich of the following enzymes is needed to produce mRNA? ligase helicase DNA polymerase RNA polymerasearrow_forward
- Which of the following mutations involve the loss of one or more nucleotides from a gene sequence? A. Deletion B. Insertion C. Base-pair substitutionarrow_forwardWhen DNA is being copied and a mistake is made while copying a gene, all of the following can result except: -The same protein that was originally supposed to be made is still made -A different protein can be made and will function differently -A non-functional protein can be made -Two proteins can be madearrow_forwardWhat gives the DNA molecule a negative charge? nucleobases deoxyribose ribose phosphate groupsarrow_forward
- Which of the following is true about DNA polymerase?a) It can synthesize DNA in the 5’ to 3’ directionb) It can synthesize DNA in the 3’ to 5’ directionc) It can synthesize mRNA in the 3’ to 5’ directiond) It can synthesize mRNA in the 5’ to 3’ directionarrow_forwardWhich of the following mutagens can substitute bases in DNA because of structural similarity? Group of answer choices nitrous acid aflatoxin base analogue intercalating agentarrow_forwardAn error in copying the DNA nucleotides during synthesis is called a _________________________. Most of these mistakes are found and removed when DNA polymerase _________________________ (does what?) to the newly formed strand. During the process called _________________ _____________, a collection of enzymes remove the error and replace it with the correct nucleotide sequence. This correction process reduces the error rate to only one error for every one billion nucleotides!arrow_forward
- Which of the following mutations involve the loss of one or more nucleotides from a gene sequence? a.Base-pair substitution b.Insertion c.Deletionarrow_forwardThe enzyme that separates the two strands of a DNA molecule during replication is: DNA ligase DNA polymerase helicase primase During DNA replication, the lagging DNA strand forms as short sections known as: anticodons primers Okazaki fragments codons Which is not a form of RNA? dRNA rRNA mRNA tRNA just give answer choicearrow_forwardWhich of the following mutations will MOST drastically change the polypeptide sequence for which the DNA codes? 1 base pair change 2 base pair changes 3 consecutive insertions 1 insertionarrow_forward
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