Many cells function properly and divide mitotically even though they do not have 

(1) Plasma membrane

(2) Cytoskeleton

(3) Mitochondria

(4) Plastids

Which of the following is not a characteristic of meiosis?

Microtubule depolymerizing drug such as colchicine is expected to 

Which of the following statements is incorrect about G₀ phase.

Beads on string like structures of A are seen in B, which further condense to form chromosomes in C stage of cell division.

Which is the longest phase of the cell cycle?

The checkpoint in cell cycle plays important role in 

Identify the correct matched pair.

The mandatory combination responsible for assembly of microtubules are

1. $N{a}^{+}$ and $C{a}^{2+}$

2. $M{g}^{2+}$ and $C{a}^{2+}$

3. $C{l}^{-}$ and $C{a}^{2+}$

4. $N{a}^{+}$ and $K^{+}$

The exchange of segments of non-sister chromatids between chromosomes of a homologous pair termed as

(1) transformation 

(2) translocation

(3) crossing over

(4) chromosomal aberration