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Zygotene

Chiasmata for...

Question

Chiasmata forms in which of these phases ?

A

Diplotene

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B

Metaphase

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C

Zygotene

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D

Anaphase

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Solution

The correct option is C
Zygotene

Chiasmata forms in the Zygotene phase. The formation of chiasmata is what is responsible for the intermixing of gene variants and the creation of genetic variation.

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Similar questions

Q. Prophase of the first meiotic division is typically longer and complex. It is subdivided into

5

phases: leptotene, zygotene, pachytene, diplotene and diakinesis. Which of the following statements is not correct of these phases?

Q. Pick out the item which has sequential arrangement.
i)

Z y g o t e n e \to L e p t o t e n e \to P a c h y t e n e \to D i p l o t e n e \to D i a k i n e s i s

D i a k i n e s i s \to Z y g o t e n e \to L e p t o t e n e \to P a c h y t e n e \to D i p l o t e n e

L e p t o t e n e \to Z y g o t e n e \to P a c h y t e n e \to D i p l o t e n e \to D i a k i n e s i s .

Q. Pick out the item which has sequential arrangements.
a) Zygotene

\to

\to

\to

\to

Diakinesis.
b) Diakinesis

\to

\to

\to

\to

Diplotene
c) Leptotene

\to

\to

\to

\to

Q. Match the following with respect to meiosis.

(a)	Zygotene	(i)	Condensation of chromatin begins
(b)	Leptotene	(ii)	Dissolution of synaptonemal complex
(c)	Diplotene	(iii)	Synapsis
(d)	Diakinesis	(iv)	Terminalisation of chiasmata

G₁, G₂ and S phases are seen in which phase of the cell cycle?

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