Introduction: Deoxyribonucleic acid (DNA) is the hereditary material that contains the essential genetic information of an organism. The defects that occur in the DNA can be rectified by various methods of
Answer to Problem 1MC
Correct answer: Option a. “produces many copies of specific DNA sequences.”
Explanation of Solution
Reason for the correct answer:
Option a. is given as “produces many copies of specific DNA sequences.”
The polymerase chain reaction (PCR) is the maximum used method for manipulating DNA. Specific amplification of particular DNA sequence produces numerous copies of desirable DNA sequences in this method.
Hence, option a. is correct.
Reasons for incorrect answers:
Option b. is given as “is a method for sequencing DNA.”
DNA sequence is the method of determining the
Hence, option b. is incorrect.
Option c. is given as “is a technique for editing a genome.”
Genome editing is the process of deleting, replacing, or inserting a DNA sequence in order to manipulate the genome of an organism. The PCR is not a technique for genome editing.
Hence, option c. is incorrect.
Option d. is given as “is used to determine whether a specific gene is expressed.”
Gene expression is determined by microarrays and targeted RNA and it cannot be determined using the PCR.
Hence, option d. is incorrect.
Hence, options b., c., and d. are incorrect.
Numerous copies of specific DNA sequences are produced using the PCR.
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Chapter 14 Solutions
Biology
- DNA technology has many medical applications. Which of the following is not done routinely at present? (A) production of hormones for treating diabetes and dwarfism (B) analysis of gene expression for more informed cancer treatments (C) gene editing by the CRISPR-Cas9 system in viable human embryos to correct genetic diseases (D) prenatal identification of genetic disease allelesarrow_forwardWhat 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.arrow_forwardWhich type of genomics studies the transcripts and proteins expressed by a genome? a. Comparative genomics b. Structural genomics c. Proteogenomics d. Functional genomicsarrow_forward
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- In next-generation sequencing, which of these advances allows for massively parallel sequencing? a. Pieces of DNA are fixed to a surface, so we can tell which new nucleotides were added to each piece. b. DNA sequences are read in real-time as nucleotides are added to each piece. c. Each segment of the genome can be pieced back together through shotgun alignment d. Single molecules of DNA can be read without the need for amplification.arrow_forwardWhen constructing a recombinant DNA molecule, a marker gene is used to: a. give the organism a new trait, such as insect resistance b. Identify whether the transformed organism contains the recombinant DNA c. replicate (copy) the gene of interest d. Introduce the recombinant DNA into an organism e. cut short sequences of DNAarrow_forwardThe CRISPR method is used in a.DNA sequencing. b.DNA fingerprinting. c.genome editing. d.the polymerase chain reaction.arrow_forward
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