Biotechnology : Principles and Processes

In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is

• Indian Council of Medical Research (ICMR)

• Council for Scientific and Industrial Research (CSIR)

• Genetic Engineering Appraisal Committee (GEAC)

• Research Committee on Genetic Manipulation (RCGM)

The correct order of steps in Polymerase Chain Reaction (PCR) is

• Extension, Denaturation, Annealing

• Annealing, Extension, Denaturation

• Denaturation, Annealing, Extension

• Denaturation, Extension, Annealing

All monerons

• Contain DNA and RNA

• Demonstrate a long circular strand of DNA, not formed enclosed in a nuclear membrane

• Are bacteria

• All of the above

Skin colour is controlled b

• Single gene

• 3 pairs of genes

• 2 pairs of genes

• 2 pairs of genes with an intragene

Gyms revoluta is popularly known as

• Sago palm

• Royal palm

• Date palm

• Sea palm

In DNA, when AGCT occurs, their association is as per which of the following pair

• A-G, C-T

• A-T, G-C

• A-C, G-T, A-C, E-T

• All of these

A segment of DNA has 120 adenine and 120 cytosine bases. The total number of nucleotides present in the segment is

• 60

• 240

• 120

• 480

Gel electrophoresis is used for

• Cutting of DNA into fragments

• Separation of DNA fragments according to their size

• Construction of recombinant DNA by joining with cloning vectors

• Isolation of DNA molecule

Polysome is formed by

• Several ribosomes attached to a single mRNA

• Many ribosomes attached to a strand of endoplasmic reticulum

• A ribosome with several sub-units

• Ribosomes attached to each other in a linear arrangement

The product of biotechnology is

• transgenic crops (GM crops)

• humulin

• biofertilizer

• All of the above