东西
发表于 2025-3-23 10:34:49
Causes of Chromosome Breaks,he same size from individuals whose average age was 55.8 years, abnormalities were found in 2.4 percent of cells (Kuhn and Therman, 1979b). Interestingly, the sensitivity of lymphocytes to alkylating agents increases significantly from newborns to young adults (mean age 23) to old people (mean age 70) (Bochkov and Kuleshov, 1972).
躲债
发表于 2025-3-23 14:46:45
Structure of the Eukaryotic Chromosome and the Karyotype,ral condition is increased by a prefixation treatment with various drugs, for example, colchicine. During mitotic metaphase, the condensed chromosomes appear in identifiable shapes characteristic of the karyotype of the species being studied.
arrogant
发表于 2025-3-23 18:27:44
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LEVY
发表于 2025-3-24 00:37:21
Longitudinal Differentiation of Eukaryotic Chromosomes,omosomes that are more condensed than the rest have also been called ., whereas those that are less condensed are . The same chromosome may at some stages be positively, at others negatively, heteropycnotic. The X chromosome in the spermatocytes of grasshoppers is an example of this.
Harrowing
发表于 2025-3-24 05:13:08
The Main Features of Meiosis, in the mosses. In those organisms in which the haploid phase dominates, the diploid generation may be represented by only one cell, the zygote. Under those circumstances, meiosis takes place immediately after fertilization.
Confound
发表于 2025-3-24 08:44:25
Reciprocal Translocations,ides a mechanism to isolate two populations. The spontaneous rate of interchanges is estimated to lie between 10. and 10. per gamete per generation in such different organisms as ., grasshopper, mouse, and man (Lande, 1979).
入伍仪式
发表于 2025-3-24 11:28:37
areer in the field. Although at times it may read as a how-to manual for success in graduate school, it is meant to encourage each reader to study the research process, to challenge conventional wisdom, and to develop a career path that maximizes the probability of success both in school and beyond.
树木中
发表于 2025-3-24 16:29:06
Eeva Thermanareer in the field. Although at times it may read as a how-to manual for success in graduate school, it is meant to encourage each reader to study the research process, to challenge conventional wisdom, and to develop a career path that maximizes the probability of success both in school and beyond.
faultfinder
发表于 2025-3-24 19:23:58
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萤火虫
发表于 2025-3-25 01:02:31
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