(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 ...
- Option A: "They produce gametes." - This is a characteristic of primary sex organs. - Option B: "They secrete sex hormones." - This is also a characteristic of primary sex organs. - Option C: "They are concerned with the conduction of gametes." - This is a function of secondary...
To determine which of the following produces gametes by mitotic division, we will analyze each option provided in the question.1. Understanding Gamete Production: - Gametes are reproductive cells that can fuse during fertili
2). As GFP is not expressed in wild type worms, the gfp(RNAi) classes represent the negative control. 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...
Define male reproductive system. male reproductive system synonyms, male reproductive system pronunciation, male reproductive system translation, English dictionary definition of male reproductive system. Noun 1. male reproductive system - the reproducti
Noun1.fertilization- creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant fecundation,fertilisation,impregnation conception,creation- the event that occurred at the beginning of something; "from its creation the plan was doomed...
Of the six fungal classes, only the oomycetes usually have a diploid vegetative state二倍体营养阶段. Zygomycetes Oomycetes and chytrids 壶菌类(sometimes called water molds) produce motile, flagellated spores in sporangia. They also produce gametes in gametangia 配 子囊; oomycetes卵菌 are ...
(Historically, the ascoma associated with powdery mildews has been called a cleistothecium because, at least initially, the sporocarp is fully closed. Later, however, these structures develop a line of weakness to break open during ascospore release. In other texts, these structures are defined...
esculentus hybrids have both the genomes of the parental species, L and R, but they produce only R gametes. This mode of reproduction requires hybrids to live sympatrically with the parental species whose genome has been eliminated. In this way hybrids in a L-E system eliminate the L genome...
6.A small block of metal or wood with a central, threaded hole that is designed to fit around and secure a bolt or screw. 7.Slang a.The cost of launching a business venture. b.The operating expenses of a theater, theatrical production, or similar enterprise:"The[theater]has simply faile...