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Synapsis is pairing of...

Synapsis is pairing of

A

Any two chromosomes

B

Non homologous chromosomes

C

Acentric chromosomes

D

Homologues chromosomes

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The correct Answer is:
D
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Synapsis (pairing of chromosomes) takes place in

Synapsis I. is pairing of homologous chromosomes. II. Is also called syndesis. III. When begins at the centromere and proceeds towards the ends, is called proterminal. IV. When begins at and proceeds towards centromere, is called procentric. Choose the correct option with correct statement(s).

Assertion : Synapsis is involved pairing of homologous chromosomes during zygotene of meiosis. Reason : Crossing over produces variations in the cells .

Assertion.Meiotic division produces four dissimilar cells Reason.Synapsis and crossing over in the zygotene and pachytene of meiosis-I prophase

Assertion: Meiotic division results in the production of haploid cells. Reason: Synapsis occurs during zygotene of meiosis.

[A] : Meiosis maintains a constant number of chromosomes . [R] : Synapsis and crossing over introduce changes in the DNA .

[A] : Synapsis occurs in zygotene stage . [R] : Pairing of homologous chromosomes is known as synapsis .

Intimate pairing between the two members of each homologous chromosome pair is initiated by the process called as synapsis, leading to bivalent formation, occurs in

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