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Cell Cycle And Cell Division

Question
CBSEENBI11003161
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Crossing over occurs in

  • zygotene

  • leptotene

  • pachytene

  • diplotene

Solution

C.

pachytene

Crossing over, ie, exchange of segments between non- sister chromatids of homologous chromosome occurs in pachytene stage of Prophase- I of Meiosis- I.

Some More Questions From Cell Cycle and Cell Division Chapter

What is polyteny ?

 Namethe five phases of of Prophase I.

 What are two types of cells on the basis of presence or absence of nucleus ?

Name an important event that occurs during meiosis and not during mitosis.

Name a cell that has half the number of chromosomes. Name the process responsible for the reduced number.

Name the sub-stage of meiosis in which crossing over takes place.

At which stage of mitosis, the two chromatids of each chromosome separate and move towards opposite poles.

Name the cell division which is responsible for growth and healing of wounds.

What type of cell division can produce variations ?

Name the active site of meiosis in flowering plants.

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