单词	diploid
释义	diploid /ˈdɪplɔɪd / Genetics adjective 1(Of a cell or nucleus) containing two complete sets of chromosomes, one from each parent. Compare with haploid.An obvious question is whether the mat bias is absent in azygotic meiosis after homologous chromosomes have coexisted in diploid cells for many mitotic divisions.... Oocytes and sperm are haploid, with one set of chromosomes, whereas somatic cells are diploid, with two chromosomal sets. However, to a low extent, viable spores can also be recovered from a very small population of homozygous diploid nuclei in an otherwise haploid plasmodium. 1.1(Of an organism or part) composed of diploid cells.Currently, six major tetraploid races are recognized and their diploid progenitors have been identified.... Note that copy numbers in tetraploids were slightly less than double those in respective diploid progenitors. The compactness of rice and sorghum genomes is evident compared to barley and diploid wheat genomes. noun A diploid cell, organism, or species.We conclude that the haploids had a greater frequency of mutant phenotypes than the diploids.... Previous work has calculated the covariance expected under autosomal inheritance in diploids and haploids. In diploids, sexual reproduction promotes both the segregation of alleles at the same locus and the recombination of alleles at different loci. Derivatives diploidy noun ... Furthermore, it can be shown to hold for PGE with male somatic diploidy and for polyploid apomixis as well. This article generalizes their approach to allow for arbitrary modes of inheritance, including diploidy, polyploidy, sex linkage, cytoplasmic inheritance, and genomic imprinting. Recessive deleterious mutations are a major cause for the phenomenon of inbreeding depression, and diploidy may have evolved to mask the effects of recessive deleterious mutations. Origin Late 19th century: from Greek diplous 'double' + -oid.
随便看	primo uomo primp primprint primrose primrosed Primrose Day Primrose League Primrose Leaguer primrose path primrose peerless primrose soap primrose-time primrose tree primrose way primrose willow primrosey primrose yellow primrosy primstaff primsy primula primulaceous primulin primuline primuline base

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