Q3 of 33 Page 18

Synthesis phase in the cell cycle is called so for the synthesis of more of

In the S phase or synthesis phase of the cell cycle, DNA replication takes place. Thus, the amount of nucleic acid is doubled.

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1

The number of chromosomes in a certain type of cell division is halved. This kind of cell division occurs in

 2

In which one of the following options the two stages of mitosis have been given incorrect sequence?

 1

Imagine one cell (A) has undergone one mitotic division and another cell (B) has completed its meiotic division. How many cells would the two products?

Cell A: …………………………………………….


Cell B: …………………………………………….

 2

Match the events given in column A with the phase in mitotic cell division in Column B























Column 'A'



Column 'B'



(a) Chromosomes get arranged in a horizontal the plane at the equator.



Anaphase



(b) Daughter chromosomes move to the opposite poles of a spindle.



Prophase



(c) Chromosomes become visible as fine long threads.



Telophase



(d) Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network.



Metaphase