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Base Pairing

During meiosi...

Question

During meiosis, homologous chromosomes pair with one another. This is known as

A

Spiralisation

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B

Synapsis

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C

Crossing over

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D

Chiasmata

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Solution

The correct option is B Synapsis
Synapsis (also called syndesis) is the pairing of two homologous chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover between them. Synapsis takes place during prophase I of meiosis.
So, B is the correct option.

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Q. During meiosis-I, homologous chromosomes of one pair switch their position without affecting the position of another pair. This is known as?

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Q. The complex formed by a pair of synapsed homologous chromosomes is called :Homologous chromosome are paired and synapsed during zygotene stage of meiosis-I and known as bivalent

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