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What is the stretch of DNA remaining unreplicated during pachytene?

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What is the stretch of DNA remaining unreplicated during pachytene?

(a) 200bp

(b) 1000bp

(c) 104bp

(d) 10 kb

This question was addressed to me in my homework.

Question is from Meiosis Prophase 1 : Pachytene in division Chromosomal Changes During Meiosis of Cytogenetics

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Right option is (a) 200bp

Best explanation: In pachytene stage short stretches of DNA remains unreplicated. This is as short as 200bp. In zygotene stage the unreplicated chromosomes are about 104 bp.

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