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 of...
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
these are mainly small towns in a largely rural region),resguardosare not a thing of the past. In fact, they work hard, among others, to be able to retain close ties with the rural lands they consider as being a part of
WewillnotdiscussthesmallRNA-basedplant immunesystemactiveagainstviruses10 ortheactiveresponseof plantstoherbivores11. needtoachieve?Someeffectors mayservestructuralroles,for example,intheextrahaustorial matrixthatformsduringfungal andoomyceteinfection24.Others maypromotenutrientleakageor pathogendispersal25. Many...
Vegetative reproduction (营养繁殖) is a kind of reproduction occurring in plants. There are several ways for plants to reproduce: using their seeds; using their roots (根); using their stems (茎); using their leaves. Look at the pictures below, can you group them according to the different...
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。
Phosphatidic acid (PA) is an important class of signaling lipids involved in various biological processes in plants. Functional characterization of mutants of PA-metabolizing enzymes, combined with lipidomics and protein–lipid interaction analyses, has revealed the key role of PA signaling in plant re...
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 ...
Correct anther development is essential for male fertility and subsequently agricultural yield. Defects in anther development range from the early stage of