HEREDITY
CROSSOVER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Diplotene
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Pachytene
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Zygotene
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Leptotene
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Detailed explanation-1: -During zygotene, homologous chromosomes form tetrads by the process of synapsis (pairing of homologous chromosomes). Formation of synaptonemal complex is also seen during this stage.
Detailed explanation-2: -Complete answer: Tetrad formation occurs during the zygotene stage of meiotic prophase. It is a meiotic-specific process. Homologous chromosomes are DNA fragments within a diploid organism of the same size one from each parental source.
Detailed explanation-3: -Prophase: In this stage, homologous chromosomes pair up to form tetrads . The formation of tetrads is also called synapsis.
Detailed explanation-4: -In the zygotene stage, homologous chromosomes (one from mother and one from father) come together and pair. The process of the pairing of homologous chromosomes is known as synapsis. The process of synapsis is very specific and exact.