| 单词 | reduction division |
| 例句 | “On Skid Row, it’s a day-to-day crisis. It’s visible,” said Shoshanna Scholar, director of the harm reduction division at the Los Angeles County Health Department. Homeless people fight to save lives, and stay alive, as L.A.’s fentanyl crisis worsens 2023-05-31T04:00:00Z For this reason, meiosis I is referred to as a reduction division. Biology for AP Courses 2022-06-09T00:00:00Z In some forms the reduction division occurs in the secondary spermatocytes instead of the primary. Being Well-Born An Introduction to Eugenics 2012-05-22T15:16:53.140Z "At this point, all the meteorological conditions are offshore so there are no implications, for Japan or other countries near Japan," Maryam Golnaraghi, chief of WMO's disaster risk reduction division, told a briefing. Japan wind change to blow radiation over Pacific 2011-03-15T14:53:16Z I'm also contemplating applying my experience in energy efficiency by working internally within a large corporation's sustainability or energy reduction division. A Change in Career Strategy 2011-01-31T15:50:00Z This sort of separation takes place at one of the two reduction divisions. A Critique of the Theory of Evolution But since these qualities segregate in the reduction divisions, how is it that the male quality in the f ovum does not make it a sperm? Hormones and Heredity The first stage in the division of the nucleus in the gonotokonts has therefore been termed the reduction division. Darwin and Modern Science The behaviour of the chromosomes in meiosis or reduction division both in the pollen mother-cells and in the megaspore mother-cells which give rise to the so-called embryo-sac are fully described by Gates. Hormones and Heredity Here it is only necessary to refer to the abnormalities in the reduction division which are related to mutation, and the results of these abnormalities in the number of chromosomes. Hormones and Heredity This fact agrees with the hypothesis that the factors in such a case are contained in a single chromosome which segregates from the fellow of its pair in the reduction divisions. Hormones and Heredity After the meiotic or reduction divisions each gamete of course contains in its nucleus four single chromosomes. Hormones and Heredity This, however, appeared later as a product of the further evolution of the zygote, and the reduction division was correspondingly postponed. Darwin and Modern Science In one of the reduction divisions all the chromosomes divide as in ordinary or homotypic nucleus division, but in the other the chromosomes simply separate into two equal groups without division. Hormones and Heredity We can only suppose that the final development of the sperms is the result of the presence of the single X chromosome in the successive generations of male gametocytes before the reduction divisions. Hormones and Heredity In the formation of its gametes when the reduction division of the chromosomes takes place, half of them receive the dominant character, half the recessive. Hormones and Heredity The chromosomes before the reduction division are arranged in pairs, each pair consisting, it is believed, of one paternal and one maternal chromosome. Hormones and Heredity The ovum then with one X chromosome or one X and one Y changes its sex at the next reduction division and becomes male. Hormones and Heredity The differentiation here, therefore, must occur in some cell-division preceding the reduction divisions. Hormones and Heredity |
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