In sexual reproduction of plants, where are the male gametes produced? A. In the ovary B. In the stigma C. In the anther D. In the style 相关知识点: 试题来源: 解析 C。解析:在植物的有性繁殖中,雄配子是在花药(anther)中产生的。选项A,卵巢(ovary)是产生雌配子和孕育种子的地方;选项B,...
Mature plants produce sporeson the underside of the leaves. When these germinate they grow into small heart-shaped plants known as prothalli. Male and female cells are produced on these plants and after fertilisation occurs the adult fern begins to develop. Which plants are reproduce by spores?
MMC is a microspore mother cell, also known as meiocyte which undergoes meiotic division and produces female gametes. So, it's ploidy is2n. What is microspore Tetrad? Microspore tetrad cells arethe microspores arranged in a group of four. Microspores are formed from microspore mother cell (MM...
Yet, dioecy does not prevent the fusion of gametes from male and female gametophytes originating from the same sporophyte. This is likely a common occurrence when spores from the same parent are dispersed in clumps and recruit together. This pattern of clumped spore dispersal has been hypothesized...
Effective gene dispersal and female reproduc- Norway spruce ate the treeline in the Swiss Alps. Silva Fenn tive success in Mediterranean maritime pine (Pinus pinaster 41: 55–70. Aiton). Mol Ecol 15: 4577–4588. Bonin A, Bellemain E, Bronken Eidesen P, Pompanon F, Brochmann Goto S, ...