Q1 of 33 Page 18

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: …………………………………………….

Cell A: 2; Cell B: 4

Cell (A) that has undergone mitotic division would produce two diploid daughter cells which contain identical sets of chromosomes as in parent. While cell (B) that has undergone meiotic division would produce four haploid daughter cells.


More from this chapter

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2

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

 3

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

 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


 3

Fill in the blanks

(a) Mitosis occurs in our .................... cells.


(b) Mitosis produces two daughter cells whereas meiosis produces ....................daughter cells.


(c) Meiosis occurs only in .................... cells.


(d) Modern humans have 46 chromosomes. Their sperms and eggs will have ................... chromosomes each.


(e) During the pairing of chromosomes in meiosis, the.................... chromosomes come to lie side by side.


(f) The ................ (s) are surrounded by radiating rays and termed as aster.