题目What isapical dominance? Why do plants have apical dominance? (6marks)相关知识点: 试题来源: 解析 植物主茎顶芽生长快,侧芽生长慢甚至不明发的现象称为顶端优势。产生顶端优势的原因至今不清楚,主要在下列假设。 (1)营养假说, 认为顶芽是一个“营养库”,它优先利用营养物质,使侧芽由于营养缺乏而受到抑制...
mcqs on gibberellin in plants mcqs on cytokinins for neet auxin function cell elongation: auxin promotes elongation in shoots and coleoptiles. plasticity of the cell wall is increased by acidification cell division and differentiation: auxin promotes healing. it helps in cell differentiation and ...
1. 1. Reviewing the literature on apical dominance in the light of the "PESIGS" rules formulated in the preceding paper (Jacobs, 1959) made clear that earlier researchers had never demonstrated exact substitution of synthetic auxin for the native auxin of the apex. 2. 2. Our clone of ...
Step-by-Step Solution:1. Definition of Auxins: - Auxins are a class of plant hormones that play a crucial role in regulating various aspects of plant growth and development, including apical dominance (the
although most studies have used plants carrying stable mutations in transporter genes to investigate functions of the transporters, it cannot be excluded that the observed phenotypes may be due to an adaptation of the plant to a specific mutation. In conclusion, it is always necessary to integrate...
‘vascular asymmetric appendicular structure initiated at the shoot apical meristem’. This definition is applicable to all vascular plants, but does not hold true for bryophytes (mosses, liverworts, and hornworts) as they lack a well-defined system of vascular tissue [1]. In fact, the leaf-...