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NEET 2020
Exam
NEET
Year
2020
Subject
Botany
Chapter
Cell Cycle and Cell Division

NEET 2020 · Botany · Cell Cycle and Cell Division

Match the following events that occur in their respective phases of...

Match the following events that occur in their respective phases of the cell cycle and select the correct option:

Column-I Column-II
(a) G1{G}_{1} phase (i) Cell grows and organelle duplication
(b) SS phase (ii) DNADNA replication and chromosome duplication
(c) G2{G}_{2} phase (iii) Cytoplasmic growth
(d) Metaphase in M−M -phase (iv) Alignment of chromosomes

Options

  1. A(a)−(ii),(b)−(iii),(c)−(iv),(d)−(i)( a ) - ( ii ) , ( b ) - ( iii ) , ( c ) - ( iv ) , ( d ) - ( i )
  2. B(a)−(iii),(b)−(iv),(c)−(i),(d)−(ii)( a ) - ( iii ) , ( b ) - ( iv ) , ( c ) - ( i ) , ( d ) - ( ii )
  3. C(a)−(iv),(b)−(i),(c)−(ii),(d)−(iii)( a ) - ( iv ) , ( b ) - ( i ) , ( c ) - ( ii ) , ( d ) - ( iii )
  4. D(a)−(i),(b)−(ii),(c)−(iii),(d)−(iv)( a ) - ( i ) , ( b ) - ( ii ) , ( c ) - ( iii ) , ( d ) - ( iv )

Correct answer

D. (a)−(i),(b)−(ii),(c)−(iii),(d)−(iv)( a ) - ( i ) , ( b ) - ( ii ) , ( c ) - ( iii ) , ( d ) - ( iv )

Step-by-step solution

Phase Characteristics
G1{G}_{1} phase The cell is metabolically most active, cell size increases and organelle duplication takes place in this phase.
SS phase In this phase, DNADNA replication, i.e. doubling of DNADNA content, histone and centriole duplication takes place.
G2{G}_{2} phase In this phase, cytoplasmic growth takes place.
Metaphase in M−M -phase In this stage, chromosomes are highly condensed and the alignment of chromosomes takes place at the metaphasic plate.
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