PATHOLOGY

PATHOLOGY MCQ

GENETICS AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is recombinant DNA?
A
Adding DNA from one organism into the DNA of another
B
DNA which has been changed over generations by natural selection
C
DNA that causes genetic disorders
D
DNA that has been sequenced
Explanation: 

Detailed explanation-1: -Recombinant DNA technology comprises altering genetic material outside an organism to obtain enhanced and desired characteristics in living organisms or as their products. This technology involves the insertion of DNA fragments from a variety of sources, having a desirable gene sequence via appropriate vector [12].

Detailed explanation-2: -Recombinant DNA, which is often shortened to rDNA, is an artificially made DNA strand that is formed by the combination of two or more gene sequences. This new combination may or may not occur naturally, but is engineered specifically for a purpose to be used in one of the many applications of recombinant DNA.

Detailed explanation-3: -Recombinant DNA: DNA which has been altered from its original form by joining genetic material from two different sources. It usually involves putting a gene or part of a gene obtained from one organism into the genome of a different organism.

Detailed explanation-4: -Recombinant DNA technology is a technique that alters the phenotype of an entity (host) when a genetically modified vector is introduced and incorporated into the genome of the host. Thus, the process entails introducing a foreign fragment of DNA into the genome containing the desired gene.

Detailed explanation-5: -Genetic Engineering This may involve changing a single base pair (A-T or C-G), deleting a region of DNA or adding a new segment of DNA. For example, genetic engineering may involve adding a gene from one species to an organism from a different species to produce a desired trait.

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