One of the male gametes fuses with the secondary polar nucleus of the female gametophyte called triple fusion, as it is the resultof the fusion of three nuclei. And second male gamete fuses with the egg cell called syngamy. Answer and Explanation: Syngamy result...
With sexual (generative) reproduction the number of chromosomes, reduced to a half as a result of meiosis, are doubled again by fertilization (fusion of male and female gametes). If meiosis takes place in a diploid plant (2 sets of chromosomes denoted by 2n=2x) cells arise with n=x ...
What is a haploid sex cell, egg or sperm, that contains a single copy of each chromosome called? What creates 4 haploid gamete cells from a diploid cell? Animals that sexually reproduce are and produce gametes. a. diploid; diploid b. haploid; diploid c. haploid; haploid d. diploid; h...
Different mating systems may be distinguished in haploid–diploid species (reviewed in Soltis and Soltis, 1992): (1) intragametophytic selfing, in which the fusion of gametes produced by the same gametophyte results in homozygosity at all loci (Klekowski, 1973), (2) intergame- tophytic self...
单倍体配子的重要性：双倍体生物形成单倍体配子，通过单倍体配子形成双倍体合子，有恢复了原染色体数量。由此一方面保证了生物基因的稳定遗传，另一方面又合适地形成变异，促进物种的发展。
ability to their offspring when crossed with a wide variety of other clones are said to have good general combining ability (GCA). The deviation of a specific cross from what is expected on the basis of the GCA of the parents is called specific combining ability (SCA).” The authors ...
- The pollen grain (male gametophyte) contains two male gametes. 3. Syngamy: - One male gamete fuses with the egg cell. This fusion is called syngamy. - The egg cell and the male gamete are both haploid, contributing one haploid nucleus each. - Therefore, from syngamy, we have 2 hapl...
The primarily diploid and heterozygous structure of theChloropicongenome suggests that fusion between haploid gametes of different genotypes yielded a diploid individual that reproduced subsequently by mitosis. If gametes of distinct mating types (mt+andmt−) were engaged in this mating as is the cas...
spore- a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion; "a sexual spore is formed after the fusion of gametes" ...
spore- a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion; "a sexual spore is formed after the fusion of gametes" ...