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Cell Cycle and Cell Division
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Cell Cycle and Cell Division
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Solved Previous Year Papers
Name the sub-stage of meiosis in which crossing over takes place.
Pachytene.
Namethe five phases of of Prophase I.
The five phases of prophase 1 are
i. Leptotene
ii. Zygotene
iii. Pachytene
iv. Diplotene
v. Diakinesis.
Name the process in which there is an exchange of genetic material between non-sister chromatids of homologous chromsomes during meiosis.
Crossing over.
What is polyteny ?
Polytene
chromosomes are giant chromosomes which are formed due to repeated DNA replication without cell division. They are found in some insects.
Name an important event that occurs during meiosis and not during mitosis.
Crossing over takes place during meiosis but not during mitosis.
What are two types of cells on the basis of presence or absence of nucleus ?
On the basis of the presence and absence of nucleus the cells are divided into two types Eukaryotic and prokaryotic cells.
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