When the ribosome encounters a stop codon in the mRNA, during translation, which one of the following binds to the stop codon?

$$ \text { Match the terms in column I with their physiological roles given in Column II. } $$

	Column I		Column II
P.	Sertoli cells	(i)	Secretion of chorionic gonadotropin
Q.	Follicle stimulating hormone	(ii)	Carries urine away from bladder
R.	Placenta	(iii)	Carries urine away from kidney
S.	Urethra	(iv)	Provides nutrition to developing spermatozoa
		(v)	Triggers ovulation

Which one of the following combinations is correct?

For which one of the following diseases does the causative agent require the splicing of their hnRNA to generate mature mRNA?

$$ \text { The diagram represents an enzyme, its substrate and potential inhibitors }(P, Q, R, S, T) \text {. } $$

Which one of the following combinations is the best pair of competitive inhibitors for the enzyme?