Q.

Match the following stages of Meiosis I with their respective descriptions:
 

 Column A 
(Stages of Meiosis I)
 Column B (Descriptions)
ILeptoteneAChromosomes start pairing together and synapsis occurs.
IIZygoteneBThe chromosomes become visible under the microscope and begin to compact.
IIIPachyteneCHomologous chromosomes begin to separate except at the chiasmata.
IVDiploteneDChromosomes are fully condensed, and the meiotic spindle is assembled.
VDiakinesisERecombination nodules appear and crossing over between non-sister chromatids of homologous chromosomes occurs.
 IIIIIIIVV
1BAECD
2ABCDE
3EBCDA
4CDAEB

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a

2

b

1

c

3

d

4

answer is A.

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Detailed Solution

Leptotene -The chromosomes become visible under the microscope and begin to compact.
Zygotene-   Chromosomes start pairing together and synapsis occurs.
Pachytene - Recombination nodules appear and crossing over between non-sister chromatids of homologous chromosomes occurs.
Diplotene - Homologous chromosomes begin to separate except at the chiasmata.
Diakinesis - Chromosomes are fully condensed, and the meiotic spindle is assembled
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