Which one of the following options is a correct match of phenomenon and its explanation?
(1) Reverse Transacription PCR - Many copies of a DNA sequence.
(2) Central dogma - RNA → DNA → Protein → RNA.
(3) RNA silencing - Use of ds-RNA to stop the expression of ss-RNA.
(4) Transcription - Process of formation of RNA & proteins.
Which of following cartoon characters does not share its name with that of a gene?
RNA interference is essential for the
(1) cell proliferation
(2) cell defence
(3) cell differentiation
Genetically modified (GM) crops can be produced by
(1) recombinant DNA technology
(2) somatic hybridization
(3) cross breeding
Which of the following genes do not occur naturally in living organisms?
(1) Bt genes
(2) RNAi genes
(3) Cry genes
(4) Endogeneous cytoplasmic defense genes
Adenosine deaminase (ADA deficiency) could be permanently cure, if the gene isolated from marrow cells producing ADA is introduced into cell at
(1) early embryonic stages
(2) Late embryonic stages
(3) early childhood
(4) None of the above
The first clinical gene therapy was given for treating
(1) diabetes mellitus
(3) rheumatoid arthritis
(4) adenosine deaminase deficiency
The source of taq polymerase used in PCR is a
(1) thermophilic fungus
(2) mesophilic fungus
(3) thermophilic bacterium
(4) halophilic bacterium
The protein products of the following Bt toxin genes cry I Ac and cry II Ab are responsible for controlling
(4) fruit fly
Three critical research areas of biotechnology are:
I. Providing the best catalyst in the form of improved organism usually a microbe or pure enzyme
II. Multiple Ovulation Transfer Technology (MOET)
III. Creating optimal conditions through engineering for a catalyst to act.
IV. Downstream processing technologies
(1) I, II, III, IV
(2) I, III, IV
(3) I, II
(4) II and IV