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NEET 2015
Exam
NEET
Year
2015
Subject
Botany
Chapter
Cell Cycle and Cell Division

NEET 2015 · Botany · Cell Cycle and Cell Division

Select the correct option: I II ( a ) Synapsis aligns homologous...

Select the correct option:
I II
(aa) Synapsis aligns homologous chromosomes (ii) Anaphase – II
(bb) Synthesis of RNA and protein (iiii) Zygotene
(cc) Action of enzyme recombinase (iiiiii) G2{G}_{2} – phase
(dd) Centromeres do not separate but chromatids move towards opposite poles (iviv) Anaphase – I
(vv) Pachytene

Options

  1. A(a)(ii)\begin{array}{ll}( a ) \\ ( ii )\end{array} (b)(i)\begin{array}{ll}( b ) \\ ( i )\end{array} (c)(iii)\begin{array}{ll}( c ) \\ ( iii )\end{array} (d)(iv)\begin{array}{ll}( d ) \\ ( iv )\end{array}
  2. B(a)(ii)\begin{array}{ll}( a ) \\ ( ii )\end{array} (b)(iii)\begin{array}{ll}( b ) \\ ( iii )\end{array} (c)(v)\begin{array}{ll}( c ) \\ ( v )\end{array} (d)(iv)\begin{array}{ll}( d ) \\ ( iv )\end{array}
  3. C(a)(i)\begin{array}{ll}( a ) \\ ( i )\end{array} (b)(ii)\begin{array}{ll}( b ) \\ ( ii )\end{array} (c)(v)\begin{array}{ll}( c ) \\ ( v )\end{array} (d)(iv)\begin{array}{ll}( d ) \\ ( iv )\end{array}
  4. D(a)(ii)\begin{array}{ll}( a ) \\ ( ii )\end{array} (b)(iii)\begin{array}{ll}( b ) \\ ( iii )\end{array} (c)(iv)\begin{array}{ll}( c ) \\ ( iv )\end{array} (d)(v)\begin{array}{ll}( d ) \\ ( v )\end{array}

Correct answer

B. (a)(ii)\begin{array}{ll}( a ) \\ ( ii )\end{array} (b)(iii)\begin{array}{ll}( b ) \\ ( iii )\end{array} (c)(v)\begin{array}{ll}( c ) \\ ( v )\end{array} (d)(iv)\begin{array}{ll}( d ) \\ ( iv )\end{array}

Step-by-step solution

Synapsis of homologous chromosome - Zygotene.

Synthesis of RNA & protein - G2{G}_{2} phase.

Action of enzyme recombinase - Pachytene.

Centromeres do not separate but chromatid move towards opposite pole - Anaphase-I.

In Anaphase-II, the centromere splits and each half chromosome moves to opposite poles.

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