$$ \text { Match the entries in Column I with their functions described in Column II. } $$

	Column I		Column II
P.	Squamous epithelium	(i)	The nucleus is at the basal side of the cell; also helps in movement of particles and mucous.
Q.	Cuboidal epithelium	(ii)	The nucleus is at the basal side of the cell; also helps in secretion and absorption.
R.	Columnar epithelium	(iii)	The nucleus is at the center of the cell; also helps in secretion and absorption.
S.	Ciliated epithelium	(iv)	It serves as a diffusion barrier.

Which one of the following best describes peptones?

Match the biomolecules given in Column I with their corresponding chemical nature given in Column II.

	Column I		Column II
P.	Insulin	(i)	Secondary metabolite
Q.	Inulin	(ii)	Homopolymer
R.	Lectin	(iii)	Quaternary ammonium derivative
S.	Lecithin	(iv)	Hetropolymer

A mitotic drug inhibits microtubule formation. Which one of the following stages of karyokinesis will be the first to get affected by the drug?