Match the following and select the correct answer: 

1. A-iv, B-ii, C-i, D-iii

2. A-i, B-ii, C-iv, D-iii

3. A-i, B-iii, C-ii, D-iv

4. A-iv, B-iii, C-i, D-ii

Flagella of prokaryotic and eukaryotic cells differ in:

The mitotic spindle is mainly composed of which protein:
1. Actin
2. Tubulin
3. Actomyosin
4. Myoglobin

Microtubules are absent in:
1.  Mitochondria
2.  Flagella
3.  Spindle fibers
4.  Centriole

Role of microtubules is:
1.  To help in cell division
2.  Cell membrane formation
3.  Respiration
4.  Pinocytosis