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Byju's Answer
Standard XII
Biology
Pachytene
Select the in...
Question
Select the incorrectly matched pair.
A
Phragmoplast - Persistent spindle
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B
Reductional division - Meiosis I
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C
Equational division - Meiosis II
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D
Crossing over - Non - homologous chromosomes
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Solution
The correct option is
D
Crossing over - Non - homologous chromosomes
Crossing over takes place between non sister chromatids of homologous chromosomes in the pachytene sub stage of Prophase I of meiosis I
So, the correct option is 'Crossing over - Non - homologous chromosomes'
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Similar questions
Q.
Assertion: Mitosis is known as equational division and meiosis is known as reduction division.
Reason: During meiosis, the non-sister chromatids of homologous chromosomes cross-over and exchange genetic information. This step does not occur during mitosis.
Q.
Assertion :Meiosis-I is called reductional division in which crossing over occur between homologous chromosomes and as end product each cell receives one set of chromosomes. Reason: Meiosis II is same as Mitosis.
Q.
What are homologous chromosomes? Name the stage of cell division in which paired homologous chromosomes get shortened & thickened. What happen to homologous chromosomes during meiosis?
Q.
The diagram opposite show a pair of homologous chromosomes during meiosis-
Maximum crossing over will occur between which genes.
Q.
Fill in the blanks with appropriate words.
Synapsis, chiasma formation and crossing over occur between homologous chromosomes in .......... of meiosis.
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