The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the basis of the finding that: a. radioactive phage were found in the pellet b. radioactive cells were found in the supernatant c. radioactive sulfur was found inside the cell d. radioactive phosphorus was found in the cell

The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the basis of the finding that: a. radioactive phage were found in the pellet b. radioactive cells were found in the supernatant c. radioactive sulfur was found inside the cell d. radioactive phosphorus was found in the cell

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter13: An Introduction To Genetic Technology

Section: Chapter Questions

Problem 11QP: Cloning Genes Is a Multistep Process In cloning human DNA, why is it necessary to insert the DNA...

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Which type of cells were used to extract the DNA that was sequenced? a. red blood cells c. white blood cells b. intestinal epithelium d. cheek swab What type of mutation caused Nicholas’s disease? a. frameshift c. nonsense b. missense d. insertion
Arrange the following steps in the sequence they would happen in a DNA cloning experiment. a. sealing DNA fragments into vectors with DNA ligase; b. utilizing a probe to detect a clone in the library; c. sequencing the clone's DNA; d. creating a DNA library of clones; e. cutting genomic DNA with restriction enzymes. A. e,a,d,b,c B. a,d,b,c,e C. c,b,e,a,d D. e,d,a,c,b
Regarding the PCR technique, what is false?a. It can produce multiple copies of DNA.b. It is the same as DNA fingerprinting.c. It is not a time-consuming process.d. It cannot successfully copy whole genes
A contig is a. a set of molecular markers used in gene mapping. b. a set of overlapping fragments that form a continuous stretch of DNA. c. a set of fragments generated by a restriction enzyme. d. a small DNA fragment used in sequencing.
Which of the following is FALSE about current Sanger dideoxy DNA sequencing procedures? a. Chain termination occurs during synthesis of a new DNA strand. b. Many steps can be automated. c. No DNA is synthesized in the procedure. d. Fluorescent molecules can be used to detect the DNA.
What is a cloning vector? A. The DNA probe used to locate a particular gene in the genome. B. An agent such as plasmid, used to transfer DNA from an in vitro solution into a living cell. C. The laboratory apparatus used to clone genes. D. An enzyme that cuts DNA into restriction fragments.
The function of a restriction enzyme is to a. prevent the movement of DNA outside the nucleus b. separate the DNA double helix c. cut the nucleotide sequence at a specific location in DNA d. proofread DNA for accidental damages and corrects these errors
From where do we get primers for sequencing DNA? A) they are synthesized by reverse transcriptase B) they are cut out of plasmids using restriction endonucleases C) DNA primase is added to the sequencing reaction and synthesizes the primers D) biotechnology companies synthesize them using organic chemistry
In 1950, using “blender” experiment, Hershey and Chase demonstrated that DNA, not protein, is the genetic material. They labeled proteins with radioactive phosphorus and nucleic acids with radioactive sulfur. A. Both statement is correct B. Both statement is incorrect C. Statement 1 is correct. Statement 2 is incorrect D. Statement 2 is correct. Statement 1 is incorrect
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' direction
Base analogs are mutagenic because of which characteristic? a. They produce changes in DNA polymerase that cause it to malfunction. b. They distort the structure of DNA. c. They are similar in structure to the normal bases. d. They chemically modify the normal bases.
Why 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℃.