Question:

Closely linked genes can be separated by

Updated On: Jul 27, 2022

recombination
inversion
deletion
translocation

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The Correct Option is D

Solution and Explanation

Two closely linked genes are located at a very small distance on a chromosome. Recombination cannot easily separate them. During inversion, sequence of genes on a chromosome is inversed thus the linked genes will not be separated but their positions will be changed. Deletion will completely remove a gene, it cannot be termed separation. Translocation is the condition in which section of a chromosome is broken off and is attached to another. This may result in separation of two linked genes.

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Notes on recombinant technology

Concepts Used:

Recombinant Technology

Recombinant DNA technology is the process used for producing new genetic combinations by joining different genetic material (DNA) together and inserting them into host organisms from two different species or sources. These new combinations are of value to medicine, science, industry, and agriculture.

Process of Recombinant DNA Technology:

Step 1- Isolation of Genetic Material.

Step 2- Cutting the gene at the recognition sites.

Step 3- Amplifying the gene copies through Polymerase chain reaction ( PCR)

Step 4- Ligation of DNA Molecules.

Step 5- Insertion of Recombinant DNA into Host.

Application of Recombinant DNA Technology:

In agricultural fields Recombinant DNA Technology plays a major role. It produces genetically-modified organisms such as flavor save tomatoes, golden rice rich in protein and lot more
Recombinant DNA technology is also used to produce Insulin.
ELISA is one kind of clinical diagnosis where recombinant DNA technology is used.
Recombinant DNA technology prevents hereditary diseases through gene therapy and also detects the presence of HIV in a person.