Question

Crossing over takes place between which chromatids and in which stage of the cell cycle?

A. Non-sister chromatids of non-homologous chrom-osomes at Pachytene stage of prophase I
B. Non-sister chromatids of non-homologous chrom-osomes at Zygotene stage of prophase I
C. Non-sister chromatids of homologous chromosomes at Pachytene stage of prophase I  
D. Non-sister chromatids of homologous chromosomes at Zygotene stage of prophase I
Answer :   Non-sister chromatids of homologous chromosomes at Pachytene stage of prophase I

Releted MCQ Question on
Botany >> Cell Cycle and Cell Divison

Releted Question 1

Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage $$\left( {{G_0}} \right).$$  This process occurs at the end of

A. $${{G_1}}$$ phase
B. $$S$$ phase
C. $${{G_2}}$$ phase
D. $$M$$ phase
Releted Question 2

Identify the correct statement with regard to $${{G_1}}$$ phase (Gap 1) of interphase.

A. Reorganisation of all cell components takes place
B. Cell is metabolically active, grows but does not replicate its DNA
C. Nuclear Division takes place
D. DNA synthesis or replication takes place
Releted Question 3

Cells in $${{G_0}}$$ phase:

A. exit the cell cycle
B. enter the cell cycle
C. suspend the cell cycle
D. terminate the cell cycle
Releted Question 4

The correct sequence of phases of cell cycle is:

A. $$M \to {G_1} \to {G_2} \to S$$
B. $${G_1} \to {G_2} \to S \to M$$
C. $$S \to {G_1} \to {G_2} \to M$$
D. $${G_1} \to S \to {G_2} \to M$$

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Cell Cycle and Cell Divison


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