无性繁殖(Asexual reproduction)通常会产生与亲本几乎相同的后代,不利于遗传多样性的增加。基因流(gene flow)受限会减少基因交流,不利于遗传多样性,这里说的是有多样性,所以B错误。近亲繁殖(Inbreeding)会导致基因纯合,减少遗传多样性。
What is our mission? First of all, I do not support abstinence from meat. In my eyes, there is no difference between plants and animals. Animals eat plants, meat-eating animals eat meat. This is the rule of nature. Even wearing animal fur is allowed within a reasonable range. What real...
A spore is a part of asexual or sexual reproduction of plants. Their function is to be spread throughout the environment and thrive in any area. Some plants, algae and fungi are spores at some point. Answer and Explanation: Become a Study.com member to unlock this answer!Create your accou...
A gardener wants to quickly get many new plants that are exactly the same as the parent plant. He should choose ___. A. sexual reproduction B. natural seeding C. asexual reproduction D. cross - pollination 相关知识点: 试题来源: 解析...
itcanbreakoffaclaworlegsothatitcanescapewhencapturedbyapredator.VegetativePropagation•Asexualrepinplants•Types:a.Runners=stemsthatgrowoversurfaceofsoil–Ex:Strawberriesb.Bulbs=undergroundstemsforfoodstorage–Ex:tulips,onionsc.Tubers=enlargedpartofundergroundstemthatstorefood–Ex:PotatoesArtificialVegetative...
What is Asexual Reproduction? What is Aspergillus? What is Parthenogenesis? What is the Evolutionary History of Plants? What are Fungi? Discussion Comments Bymomothree— On Jun 02, 2011 @dinoleash- I’m not really sure if this will answer your questions but I’ll try. There are certain spo...
Whereas lower vascular plants, such as club mosses and ferns, are mostly homosporous (produce only one type of spore), all seed plants, or spermatophytes,
Sexual reproduction is often favored over asexual reproduction, because new phenotypes from sexual reproduction could be advantageous to the species. Plants and animals have different strategies to reproduce. Plants are stationary organisms, so they need strategies to disperse both gametes and new ...
Are seedless fruits really seedless? The answer isno!You can't plant a seedless fruit, because the plants that produce them don't occur in nature because they're sterile. ... The new plants that begin to grow are basically genetic clones of the original parent plant, except that they pro...
He cites the advantages of having plants recorded in the Register for identification purposes. The author relates that the rules for the registration of hybrids require that the plant to be registered must be grown through successions of asexual reproduction.Butcher...