The bivalents are homologous chromosome containing a total of two chromosomes. On the other hand, tetrad is the homologous pair of chromosomes containing four chromosome.
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A bivalent refers to a pair of homologous chromosomes that have synapsed during meiosis. A tetrad, on the other hand, consists of four chromatids of two homologous chromosomes that come together during meiosis. Tetrad formation involves the pairing of homologous chromosomes to exchange genetic material through crossing over, leading to genetic variation.
Tetrad
Tetrad means a group of four. It is derived from the Greek word "tetra," which means four. In various contexts, tetrad can refer to a group of four related things or elements.
Two sets of sister chromatids .
A group of four chromatids can be found during the stage of meiosis known as a tetrad. Tetrads are formed when homologous chromosomes pair up, creating two pairs of sister chromatids. These tetrads are important for genetic recombination to occur during meiosis, leading to genetic variation in the resulting gametes.
A tetrad consists of two homologous chromosomes, each composed of two sister chromatids. This results in a total of four chromatids aligned during meiosis, allowing for genetic recombination between the homologous chromosomes.