(c)Explain the importance of meiosis in the production of gametes. 相关知识点: 试题来源: 解析 1.halves the chromosom number2.to produce a haploid nucleus3.allows genetic variation (in gametes )4.through dependen ssortment5.through crossing over ...
1.GeneticsThe process of cell division in sexually reproducing organisms that reduces the number of chromosomes from diploid to haploid, as in the production of gametes. 2.Rhetorical understatement. [Greekmeiōsis,diminution, frommeioun,to diminish, frommeiōn,less; seemei-inIndo-European roots.] ...
The uncut conditions represent worms in which proliferation is only required for cell turnover during adult tissue homeostasis, and the production of gametes. In the cut conditions, the body was amputated by cutting worms between the pharynx and testes after 1 week of RNAi treatment, inducing ...
题目What is the main purpose of mitosis? A. Genetic variation B. Production of gametes C. Growth and repair D. Reduction of chromosome number 相关知识点: 试题来源: 解析 C。原因:有丝分裂的主要目的是生长、修复和无性繁殖。反馈 收藏
Adult males and females of the same species often differ from each other in a wide range of phenotypic traits, not simply in characteristics directly related to the production and release of gametes1,2. For example, males and females may attain different body sizes, differ in body proportions ...
Method for the production and collection of avian gametes, which includes the steps of: providing primary germ cells from an avian donor species; administering said primary germ cells to an avian receiving species in ovo, wherein said receiving avian species is a different species from said donor...
These compounds are aimed to inhibit the production of E2 in postmenopausal women; thus, a current clinical usage of anastrozole, exemestane, and letrozole as they became useful in the management of patients with breast cancer lesions found to be E2 receptor positive. Aromatase inhibitors are also...
Studies of zooids produced by complanate Scytosiphon thalli throughout the growing season over a period of several years show that the simultaneous production of male and female gametes is rare. Gametogenesis occurs in late winter and spring (August–October). Gametes are negatively phototactic, an...
Secretory cells lining the lumen of the mammalian oviduct synthesize and secrete proteins that have been shown to interact with and influence the activities of gametes and embryos. We hypothesized that the presence of gametes in the oviduct alters the oviductal secretory proteomic profile. We used a...
CO2. Transfer of excitation energy from excited chlorophylls to oxygen in the light-harvesting complexes leads to the formation of1O2and O2●-, which can be further converted to H2O2and OH●. The production of ROS is enhanced by strong light and also by deceleration of the Calvin cycle [28...