CELL DIVISION
MEIOSIS AND GENETIC VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Tetrad
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Crossing Over
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Sister Chromatids
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Synapsis
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Detailed explanation-1: -The tight pairing of the homologous chromosomes is called synapsis. In synapsis, the genes on the chromatids of the homologous chromosomes are aligned with each other.
Detailed explanation-2: -Synapsis is the pairing of homologous chromosomes during prophase I of meiosis. The synaptonemal complex is the protein scaffolding structure present between homologous chromosomes that facilitates genetic recombination.
Detailed explanation-3: -As the consequence, two homologous chromosomes are brought together in close association, a process known as homolog-pairing. A proteinaceous structure known as the synaptonemal complex (SC) is subsequently formed between the paired homologous chromosomes. This step is called synapsis.