The figure given below shows the structure of a chloroplast with its four parts labelled as A, B, C and D.

Select the part that is incorrectly matched with its function.

Read the following statements with respect to cilia and flagella, and state them as true (T) or false (F):

(a) Cilium or flagellum contains an outer ring of nine triplet microtubules surrounding two singlet microtubules.

(b) Cilia are smaller and work like oars, causing the movement of either the cell or the surrounding fluid.

(c) Flagella are comparatively longer and are responsible for cell movement.

(d) Cilia and flagella are hair-like outgrowths of the cell membrane.

Study the statements (A-D) given below, and select the correct option with respect to the cytoskeleton:

A. The cytoskeleton occurs in both prokaryotic and eukaryotic cells.

B. It is made up of filamentous and tubular proteinaceous structures.

C. Involved in many functions such as mechanical support and motility.

D. It is composed of tubulin, actin and flagellin proteins.

Consider the following statements, and select the option that correctly fills the blanks:

(i) The interphase nucleus has a loose and indistinct network of nucleoprotein fibers called        A          .

(ii) The structure which provides the shape of chromosomes is called _____B_____.

(iii) A part of chromosome beyond non-staining secondary constriction is called ____C____.

(iv) Kinetochores are ___D___ structure.