词汇 | diploid |
释义 | diploid adjective uk /ˈdɪp.lɔɪd/ us /ˈdɪp.lɔɪd/ having two sets of chromosomes (= structures containing chemical patterns that control what a plant or animal is like), one from each parent: 二倍的,二倍体的(具有两套分别来自父体和母体的染色体) a diploid cell二倍体细胞 Compare haploid Cells actin anaphase anti-platelet assort axoplasm histochemistry histography homologous chromosomes infiltration intercellular neoplasia nerve fibre neurofibril neurofibrillary neuroglia teratoma tetrad thrombocyte thymocyte turgor diploid | American Dictionarydiploid adjective[ not gradable ] us/ˈdɪp·lɔɪd/ biology having two sets of chromosomes (= structures containing the chemical patterns controlling what a plant or animal is like), one set from each parent Examples of diploiddiploid In tetraploid mapping, this drift error can be substantially reduced compared with diploid mapping. In addition, polyploid forms of plants can adapt to more extreme conditions than their diploid relatives and are thus of great practical value. Inbreeding depression in diploid, tetraploid, and hexaploid crested wheatgrass. Despite the different diploid number, marked similarities between the complements were noted. Both regions were found to be highly variable among natural diploid populations, but not among triploids (or tetraploids). In either case, the progeny of such matings would give rise to subsequent generations of normal diploid schistosomes. Since the meiotic chromosomes in the female perform no crossing-over, tetraploid females are as fertile as diploids. This implies that diploid individuals tend to ' mask ' deleterious mutations with ' normal ' alleles carried on the homologous chromosomes. No major differences were observed for the two indices between the two diploid or the two triploid populations. Heritability estimates were obtained assuming a diploid inheritance model without epistasis and noninbred parents chosen at random from the parent varieties. Sorting out might also occur in big tetraploidbig diploid chimaeras if tetraploid and diploid cells had different cell surface properties. Therefore, untreated and refractory diploids were pooled in tests to determine any effects of ploidy status. The second series of experiments was designed to test the effects of ploidy and involved aggregating a big diploid cell with a big tetraploid cell. Effect of excluding sib matings on inbreeding coefficient and effective size of finite diploid populations. Whatever the dominance coefficient, this differs from the continuous decrease of inbreeding depression with the selfing rate in diploids. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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