genetics a four-stranded construction, formed during the pachytene phase of meiosis, consisting of paired homologous chromosomes which have Each and every divided into two chromatids
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Parental ditype is a tetrad sort made up of two unique genotypes, both equally of which might be parental. A spore arrangement in ascomycetes that contains just the two non-recombinant-type ascospores.
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In addition, homologous chromosomes pair during the prophase I with the meiosis I, although chromatid pair emerges right after going through DNA replication through the S section on the interphase of the cell cycle. What's more, a tetrad can bear homologous recombination though chromatid pair won't bear homologous recombination.
A quartet is a bunch of four individuals that Participate in musical instruments or sing jointly. … a string quartet. A quartet can be a piece of tunes for 4 instruments or 4 singers.
For those who’ve ordered four pizzas for evening meal, you can announce that you're serving a tetrad of pizzas. You should utilize the noun tetrad to talk about a set of four numbers in math, or a bunch of four factors in many branches of science — a person form of tetrad is a gaggle of 4 spores in one certain sort of yeast.
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A gaggle of 4 cells, as of spores or pollen grains, fashioned from a mum or dad cell by meiosis. As Component of the entire process of spermatogenesis, a spermatocyte divides into a tetrad of 4 spermatids, cells which go on to develop into sperm.
tetrad The rest of the mutations were clearly generated throughout meiosis and occurred in tetrads with any progenitor alleles. From your Cambridge English Corpus For grey squirrels the growth in tetrads occupied appeared to rise asymptotically, Together with the growth declining soon after 1999.
Spores of Riccia sorocarpa continue to related in tetrads adhering to meiosis. The tetrad could be the 4 spores produced right after meiosis of the yeast or other Ascomycota, Chlamydomonas or other alga, or maybe a plant.
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Importantly, the homologous recombination is responsible for exchanging portions of chromosomes, and these exchanged elements pass into diverse gametes. Consequently, it's the principal process of manufacturing genetic variation in successive generations.
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