Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134312729
Author: Johnson
Publisher: PEARSON
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Chapter 20, Problem 2TY
Summary Introduction
Introduction:
Proteins, DNA (deoxyribonucleic acid), and RNA (ribonucleic acid) are the essential macromolecules in living cells and are polymerized by molecular machines.
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For what purpose is DNA fingerprinting used
A) to sequence DNA from bacteria
B) to separate DNA fragments
C) to identify individuals who have committed crimes
D) to identify single nucleotide polymerase
What 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 DNA
Choose the combination of answers that most accurately completes the statement.Which of the following is not essential to carry out the polymerase chain reaction? a. primers c. gel electrophoresis b. DNA polymerase d. high temperature
Chapter 20 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 20 - Prob. 1QCCh. 20 - GM foods are created for a variety of reasons,...Ch. 20 - Should foods that contain genetically modified...Ch. 20 - Explain how DNA is sequenced.Ch. 20 -
2. Describe the enzymes used in recombinant DNA...Ch. 20 - Prob. 3CRCh. 20 - Discuss the polymerase chain reaction technique,...Ch. 20 - Prob. 5CRCh. 20 - Prob. 6CRCh. 20 - Prob. 7CR
Ch. 20 - Prob. 8CRCh. 20 - Prob. 9CRCh. 20 -
10. List the diseases that gene therapy may be...Ch. 20 - Prob. 1TYCh. 20 - Prob. 2TYCh. 20 - Which of the following is used to separate...Ch. 20 - Genetically engineered human insulin, human growth...Ch. 20 - Prob. 5TYCh. 20 - All of the following statements about transgenic...Ch. 20 -
7. "Gene pharming” refers to:
a. using transgenic...Ch. 20 - Prob. 8TYCh. 20 - Prob. 9TYCh. 20 - Prob. 10TYCh. 20 - Which of the following is needed for sequencing...Ch. 20 - A tiny amount of blood was recovered from a crime...Ch. 20 - Which technique will allow amplification of the...Ch. 20 - A gene for a bacterial protein with insecticide...Ch. 20 - Prob. 15TYCh. 20 -
1. What do you think are the chances that someone...Ch. 20 - Imagine a future in which the respiratory effects...Ch. 20 - Prob. 3AWKCh. 20 - Prob. 4AWKCh. 20 - Prob. 5AWKCh. 20 - There is interest in producing vaccines in foods....Ch. 20 - Transgenic plants have the potential to improve...
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- What is the purpose of the low temperature step in the PCR reaction? a. To allow DNA polymerase to synthesize new DNA in the 3' to 5' direction b. To permanently deactivate DNA polymerase c. To allow primers to anneal to DNA templates d. To allow DNA polymerase to synthesize new DNA in the 5' to 3' directionarrow_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_forwardChose one of the options from A,B,C,D After replication,_________. a one new DNA double helix consists of two old strands and the other new DNA double helix consists of two new strands b each new DNA double helix consists of two new strands c each new DNA double helix consists of two old strands d each new DNA double helix consists of one old strand and one new strandarrow_forward
- What 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_forwardWhich process consists of modifying an individual’s genome? a. DNA profiling b. SNPing c. genetic engineering d. DNA hybridization e. PCRarrow_forwardHow 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 strandarrow_forward
- Polymerase Chain Reaction, or PCR, can Group of answer choices A. target a specific region of DNA and cut it out of the rest of the genetic material for further analysis. B. copy the number of copies of a selected region of DNA linearly. C. increase the number of copies of a selected region of DNA exponentially. D. copy the entire genome at least a dozen times.arrow_forwardWhich one is an example of nucleic acid hybridization? A the template and newly synthesized DNA strands in replication B reverse transcription of a human RNA into cDNA C association of two strands, one synthetic, by complementarity D synthesis of copy strands by PCR E gene cloning in bacteriaarrow_forwardA protein that can cut DNA at specific DNA base sequences is called aa. DNase. c. restriction enzyme.b. DNA ligase. d. DNA polymerase.arrow_forward
- Compare and contrast polymerase chain reaction (PCR) to DNA replication in a cell.arrow_forwardIn DNA replication, the enzyme helicase breaks hydrogen bonds between complementary nucleotides and causes the double-stranded DNA to become single-stranded (denatures the DNA). What is used in PCR to break the hydrogen bonds between complementary nucleotides? A) buffers B) DNases C) taq Polymerase D) heat E) helicasearrow_forwardWhy is it important to use a hyperthermophilic DNA polymerase in PCR? a) Because only hyperthermophiles have DNA polymerases. b) Because hyperthermophilic DNA polymerase is able to resist the saline reaction conditions. c) Because hyperthermophilic DNA polymerase is faster than other polymerases. d) Because hyperthermophilic DNA polymerase is able to resist denaturation at 95℃.arrow_forward
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