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71.

Cells in G₀ phase of cell cycle

72.

Longest phase of meiosis

73.

In which stage of the first meiotic division two sister chromatids are formed?

G₁ - S - G₂ - M

The complete cell cycle contains a sequence of phases which are

(a) Interphase which is further subdivided into G₁-phase or postmitotic gap, S-phase or synthesis phase and G₂-phase or premitotic gap respectively

(b) Dividing phase or M-phase (mitotic or meiotic phase) which comprises karyokinesis and cytokinesis.

So, the correct sequence of phases in cell cycle is

G₁ $\to$ S $\to$ G₂ $\to$ M

75.

The complex formed by a pair of synapsed homologous chromosomes is called

76.

Meiosis takes place in

77.

A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characteristics

Telophase - Nuclear envelope reforms, Golgi complex reforms
Late anaphase - Chromosomes move away from equatorial plate, Golgi complex not present
Cytokinesis - Cell plate formed, mitochondria distributed between two daughter cells
Telophase - Endoplasmic reticulum and nucleolus not reformed yet

78.

Select the correct statement related to mitosis.

Amount of DNA in the parent cell is first halved and then distributed into two daughter cells
Amount of DNA in the parent cell is first doubled and then distributed into two daughter cells
Amount of DNA in the parent cell is first halved and then distributed into four daughter cells
Amount of DNA in the parent cell is first doubled and then distributed into four daughter cells