The study of chromosomes at the meiotic diplotene stage shows that:
- AThe intimately paired chromosomes repel each other and begin to separate.
- BThe pairing of homologous chromosomes which had initiated in the earlier stage is completed.
- CThe homologous chromosomes remain united by chiasmata.
- DNone of the above.
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Similar Questions
If the diploid number in $G_1$ phase is $8$,what should be the number of chromosomes in daughter cells after meiosis-$I$ and meiosis-$II$,respectively?
Medium
View Solution$A -$ Meiosis is called the reduction division.
$R -$ It reduces the chromosome number by half while making the gametes.
$R -$ It reduces the chromosome number by half while making the gametes.
Medium
View SolutionWhen a pair of homologous chromosomes (bivalent) is formed,it consists of:
Easy
View SolutionMatch the following stages of Prophase-$I$ of meiosis with their respective characteristics:
$I$. Leptotene $A$. Chromosomes appear as clear bivalents/tetrads $II$. Zygotene $B$. Chromosomes appear like a thread (beaded appearance) $III$. Pachytene $C$. Chromosome condensation reaches its maximum $IV$. Diakinesis $D$. Synapsis of homologous chromosomes occurs
| $I$. Leptotene | $A$. Chromosomes appear as clear bivalents/tetrads |
| $II$. Zygotene | $B$. Chromosomes appear like a thread (beaded appearance) |
| $III$. Pachytene | $C$. Chromosome condensation reaches its maximum |
| $IV$. Diakinesis | $D$. Synapsis of homologous chromosomes occurs |
Difficult
View SolutionThe longest phase of meiosis is
Easy
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