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PART - 1 - Unit III : CH - 10 Cell Cycle and Cell Division — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 1 - Unit III : CH - 10 Cell Cycle and Cell Division2 Marks
Question
Define meiosis. Describe the leptotene phase.
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Answer

Meiosis: The division in which the number of chromosomes in the daughter cells is half that of the mother cell is called meiosis.
Leptotene: In this stage of leptotene phase, chromosomes become long thread-like. Pearl-like structures or chromomeres are found on these structures. The nucleus increases in volume. In the chromosome network, half the chromosomes are from the male and half from the female. Chromosomes having similar structure are homologous.

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