C。解析:Asexual reproduction in plants has the characteristics that offspring are genetically identical to the parent and it only requires one parent. Types such as vegetative propagation and budding are forms of asexual reproduction. However, the union of male and female gametes is a characteristic...
It is a faster way to produce new plants D. It requires a lot of E. nergy 相关知识点: 试题来源: 解析 C。解析:植物无性繁殖的一个优势是能够更快速地产生新的植株。因为无性繁殖不需要经过复杂的配子结合等过程。选项A,产生多种多样的后代是有性繁殖的优势;选项B,无性繁殖产生的后代基因与亲本...
University of Rajasthan STRUCTURE ,DEVELOPMENT AND REPRODUCTION IN FLOWERING PLANTS (PAPER SECOND) University model question papersUniversity of Rajasthan STRUCTURE
The only ligand–receptor pair identified in anther development so far has been reported in both monocots and dicots:AtTPD1 (TAPETUM DETERMINANT (1):AtEMS1/EXS (EXCESS MALE SPOROCYTES 1/ EXTRA SPOROGENOUS CELLS) inA. thaliana,OsTDL1A (TPD1-LIKE 1A):OsMSP1 (MULTIPLE SPOROCYTE1) in rice,Z...
adding to the exhaustion. Indigenous repeatedly complained these same activities were becoming more difficult as a result of the restrictions imposed by private landowners and companies, many of whom partook in the recent land rush. And so, I initially left with the question of whether the struggl...
offspring with more genetic variation D. a quicker process compared to asexual reproduction 相关知识点: 试题来源: 解析 C。解析:植物有性繁殖通常会导致后代有更多基因变异,选项 A 无性繁殖后代基因变异少。选项 B 无性繁殖后代与亲本相似。选项 D 有性繁殖过程相对无性繁殖较慢。
In asexual reproduction of plants, which part can be used for reproduction? A. Only the root B. Only the flower C. Leaves, stems or roots D. Only the seed 相关知识点: 试题来源: 解析 C。解析:在植物的无性繁殖中,叶子、茎或者根都可以被用于繁殖。例如,有些植物可以通过扦插茎来繁殖,有些...
This question can be posed in different biological systems, but it seems logical (both experimentally and historically) that the microbiological community should be the first to attempt to answer it. The availability of the complete genomic sequence of so many microorganisms (see table I) has ...
Municipal wastewater treatment plants (WWTPs) are known to be a source of EDCs for aquatic environment. Indeed, studies in the United Kingdom during the 1990s showed feminization of fish and altered reproduction in relation to WWTPs (Purdom et al., 1994; Sumpter and Jobling, 1995; Jobling ...
2014). The study of lncRNAs in plants is still an emerging area of research with the function of most lncRNAs awaiting discovery (Yu et al. 2019). Thus, research is needed to identify additional functional examples of lncRNAs involved in the HSR in both vegetative tissues and male gametophyte...