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Answer:

Synapsis...

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Explanation:

During prophase I of meiosis, these pairs form a tetrad in a process called crossing over or recombination. Tetrad is formed with the help of the alignment of two homologous chromosomes.

What do you mean by Meiosis?

Meiosis may be defined as a process where a single cell divides twice to create four cells comprising half the original amount of genetic information.

In prophase I of meiosis, the two homologous chromosomes align in such a way that it undergoes crossing over, which synthesizes four chromatids of two chromosomes and leads to the formation of the tetrad.

Therefore, during prophase I of meiosis, these pairs form a tetrad in a process called crossing over or recombination.

To learn more about Meiosis, refer to the link:

https://brainly.com/question/8253366

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