Question

Hello guys
Tell the brief description on Prophase 1 ( meiosis division)

Please answer my other questions too by going through it Please​

Answer 1

$\huge\mathfrak{Answer:-}$

Prophase 1

⭕ It is the longest phase of meiosis. In compare to prophase of mitosis it is 100 to 200 times longer.

⭕ Divided into 5 sub phases ✔✔

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⭕ Leptotene = Also called thin thread stage.

• Condensation and spiralisation of chromosome begins.

⭕ Zygotene = Paired thread stage.

• Pairing of homologous chromosomes which is known as synapsis or syndesis.

⭕ Pachytene = Thick threaded stage.

• Bivalent appears tetrad. 4 chromatids.

⭕ Diplotene = Double threaded stage.

• Desynapsis occurs. Seperation begins from centromere and it proceeds towards telomere.

• Chiasmata is seen.

⭕ Dikanesis = Terminatisation is competed. Nuclear mrmbrane and nucleus disappers.

• Formation of nuclear spindle appratus begins.

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$\huge\mathfrak{Thank you :))}$

Answer 2

Answer:

It is the longest phase of meiosis. In compare to prophase of mitosis it is 100 to 200 times longer.

⭕ Divided into 5 sub phases ✔✔

➖➖➖➖➖➖➖➖➖➖➖

⭕ Leptotene = Also called thin thread stage.

Condensation and spiralisation of chromosome begins.

⭕ Zygotene = Paired thread stage.

Pairing of homologous chromosomes which is known as synapsis or syndesis.

⭕ Pachytene = Thick threaded stage.

Bivalent appears tetrad. 4 chromatids.

⭕ Diplotene = Double threaded stage.

Desynapsis occurs. Seperation begins from centromere and it proceeds towards telomere.

Chiasmata is seen.

⭕ Dikanesis = Terminatisation is competed. Nuclear mrmbrane and nucleus disappers.

Formation of nuclear spindle appratus begins.

➖➖➖➖➖➖➖➖➖➖➖➖

Explanation:

hope it will help you