Nobel prize was given to Andrew Fire and Craig Mello for their work on $RNAi$ on

Maturation of proinsulin into insulin takes place after

Disadvantage of using porcine insulin in diabetic patients is

What could be the possible harm of using antibiotic resistant gene as a selectable marker in plasmid, used for gene transfer in production of $GM$ food?

$(A)$ $GM$ food contains the enzyme produced by the antibiotic resistance gene that was used during gene tranfer in genetic engineering. This could cause allergies since it is a foreign protein.

$(B)$ The bacteria present in the alimentary canal of the humans could take up the antibiotic resistance gene present in $GM$ food.

$(C)$ The bacteria in the human alimentary canal would then become resistant to the concerned antibiotic.

$(D)$ The transgene may be transferred through pollen to their wild relatives and make weeds more persistant
and damaging.

Which one of the following vectors is used to replace the defective gene in gene therapy ?

Select the correct statement $(s)$

$(1)$  $IARI$ has released a mustard variety rich in vitamin $C$.

$(2)$ Pusa Sawani variety of Okra is resistant to aphids.

$(3)$ Hairiness of leaves provides resistance to insect pests.

$(4)$ Agriculture accounts for approximately $33\%$ of India's $GDP$ and employs nearly $62\%$ of the population.