MasteringBiology With eText - Access
7th Edition
ISBN: 9780321911940
Author: Johnson
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem 8TY
How many different amino acids could be encoded if the genetic code was a doublet code (two bases) instead of a triplet code?
a. 2
b. 4
c. 8
d. 16
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Make a simple illustration to relate the different kinds of DNA to its function.
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a.) an amino acid sequence
b.) DNA ligase
c.) restriction enzymes
d.) mRNA
What is the role of Proteinase K in DNA isolation?
A. Inhibit enzymes
B Catalyze breakdown of nuclei acids
C Degrade proteins
D Remove disultide bongs in proteins
Chapter 17 Solutions
MasteringBiology With eText - Access
Ch. 17 - Do you think the potential benefits of therapeutic...Ch. 17 - Should research leading to human reproductive...Ch. 17 - Describe how DNA is replicated before cell...Ch. 17 -
2. Compare and contrast the processes of...Ch. 17 - Explain what mutations are and the role of DNA...Ch. 17 - Name the four phases of mitosis and describe...Ch. 17 -
5. Explain why only one large egg is formed...Ch. 17 - Describe what is meant by selective gene...Ch. 17 - Explain how factors present in the environment can...Ch. 17 - Describe how ribosomes contribute to the formation...
Ch. 17 - Prob. 9CRCh. 17 - Prob. 10CRCh. 17 - What would be the outcome if a cell completed...Ch. 17 - Prob. 2TYCh. 17 - Prob. 3TYCh. 17 - Prob. 4TYCh. 17 - Which of the following are listed in order from...Ch. 17 - Prob. 6TYCh. 17 - Which is likely to be the shortest chain of...Ch. 17 - How many different amino acids could be encoded if...Ch. 17 - Prob. 9TYCh. 17 - Why do cells within an organism differentiate,...Ch. 17 - Which method of cloning is most similar to the way...Ch. 17 - Prob. 12TYCh. 17 - Prob. 13TYCh. 17 - Prob. 14TYCh. 17 -
15. How does the production of sperm differ from...Ch. 17 - Prob. 1AWKCh. 17 - Prob. 2AWKCh. 17 - Prob. 3AWKCh. 17 - Prob. 4AWKCh. 17 - Mitochondria contain their own DNA that is...Ch. 17 - Bacteria can reproduce by simple cell division....
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- a. Give the sequence of mRNA that would be transcribed off of the bottom strand and label its 5' and 3' ends. b. translate this RNA sequence in 1a into a protein sequence c. Give the sequence of mRNA that would be transcribed off of the top strand and label its 5' and 3' ends. d. Translate this RNA sequence in 1c into a protein sequencearrow_forwardPredict what might happen if the DNA that coded for a protein contained thewrong base sequence.arrow_forwardWhich helps prevent errors in DNA replication? A) Complementary base pairing reduce errors B) DNA ligase checks the DNA for errors C) DNA is located in the ribosomes D) Any base can pair with any other basearrow_forward
- Which is true of the lagging strand in DNA synthesis? a. It is built elongating towards the replication fork b. It is composed entirely of RNA c. It is built in the 3’ to 5’ direction d. It elongates in a series of segments, rather than continuouslyarrow_forwardConsider how histone proteins bind to DNA and then explain whya high salt concentration can remove histones from DNA (asshown in 10.18b).arrow_forwardWhich describes the role of primase during replication? a. It catalyzes the formation of phosphodiester bonds using NTPs as substrates. \ b. It coordinates synthesis of the leading strand and the lagging strand. c. It functions as a holoenzyme that polymerizes in the 3’→ 5’ direction. d. It uses an exonuclease activity to remove incorrect nucleotides.arrow_forward
- Which technique allows a researcher to change a single specific nucleotide in a gene sequence in vitro? a. The CRISPR-Cas9 system b. PCR-based random mutagenesis c. PCR-based site-specific mutagenesis d. RT-PCRarrow_forwardThe structure of DNA revealed how information is stored in the base sequence along a DNA strand. But what information is stored and how is it expressed?arrow_forwardWhich step follows the assembly of new DNA strands by DNA polymerase? A. Enzymes unwind and separate the two strands of DNA. B. Repair enzymes correct potential mutations in the DNA sequence. C. Primers base-pair with the exposed single DNA strands. D. DNA ligase seals any gaps remaining between bases of new DNA.arrow_forward
- Choose the combination of answers that most accurately completes the statement. Why must the lagging strand of DNA be replicated in short pieces? a. because of limited space b. otherwise, the helix will become distorted c. the DNA polymerase can synthesize in only one direction d. to make proofreading of code easierarrow_forwardChoose the combination of answers that most accurately completes the statement.Why must the lagging strand of DNA be replicated in short pieces? a. because of limited space b. otherwise, the helix will become distorted c. the DNA polymerase can synthesize in only one direction d. to make proofreading of code easierarrow_forwardChoose the combination of answers that most accurately completes the statement.The function of ligase is to a. rejoin segments of DNA c. synthesize cDNA b. make longitudinal cuts in DNA d. break down ligamentsarrow_forward
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