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...
Which of the following statements about asexual reproduction in plants is correct? A. It is not a common method for plant adaptation. B. It often involves the exchange of genetic material between different plants. C. It can help plants reproduce quickly in a favorable environment. D. It ...
C。解析:Grafting is a method of asexual reproduction in plants. It involves joining parts of two different plants together so that they grow as one. Fertilization is part of sexual reproduction. Seed dispersal is related to the spread of seeds after sexual reproduction. Cross - pollination is ...
Asexual reproduction is all about exploiting a good niche. In such circumstances the value of sexual reproduction [music in] with its resultant diversity may actually weaken the dominance of an established group. But in a changing environment, diversity means survival. ...
A. High genetic variation among offspring B. The need for two different plants to start the process C. Offspring are genetically identical to the parent D. Involvement of pollination 相关知识点: 试题来源: 解析 C。解析:植物无性繁殖的一个特征是后代与亲本在基因上相同。选项A,无性繁殖后代基因变...
Figure 3. Grafting is an artificial method of asexual reproduction used to produce plants combining favorable stem characteristics with favorable root characteristics. The stem of the plant to be grafted is known as the scion, and the root is called the stock. ...
Plant reproduction is the process by which plants generate new individuals, or offspring. Reproduction is either sexual or asexual. Sexual reproduction is the formation of offspring by the fusion ofgametes. Asexual reproduction is the formation of offspring without the fusion of gametes. Sexual reprodu...
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Plants typically have a main stem growing up from a root system in the soil, with branches emerging from 'nodes' on the stem. Sexual reproduction in plants often involves male pollen grains fertilizing the ovules in a flower. Protective seed coats form around the fertilized ovules before they ...
asexual reproduction 亲体不通过性细胞而产生后代个体的生殖方式。多见于无脊椎动物。又称无配子生殖。各式无性生殖的共同特点是参与生成新个体的细胞在遗传物质组成上和亲代的体细胞相同,一般都是含有相同数目染色体的二倍体细胞。无性生殖不经复杂的胚胎发育,也不发生遗传信息的重组,所以子代的遗传物质基础和亲代完全...