syngamy造句

• Syngamy can only take place between gametes carrying different mating types.
• With multi-seeded fruits, multiple grains of pollen are necessary for syngamy with each ovule.
• There it is revealed that as inbreeding increases, meiosis becomes more important ( the coefficient increases ), while syngamy becomes less important.
• However, under stressful conditions such as nutrient limitations and other conditions associated with DNA damage, they tend to reproduce sexually by meiosis and syngamy.
• Vegetative propagation is a type of asexual reproduction found in plants where new individuals are formed without the production of seeds or spores by meiosis or syngamy.
• Fertilization ( also known as'conception','fecundation'and'syngamy') is the fusion of gametes to produce a new organism.
• The graphs to the right plot the " meiosis " and " syngamy ( fertilization ) " coefficients of determination against the inbreeding coefficient.
• So that, rather than providing selective advantages through reproduction, sex could be thought of as a series of separate events which combines step-by-step some very weak benefits of recombination, meiosis, gametogenesis and syngamy.
• The last common ancestor of all eukaryotes is believed to have been a phagotrophic protist with a nucleus, at least one centriole and cilium, facultatively aerobic mitochondria, sex ( meiosis and syngamy ), a dormant cyst with a cell wall of chitin and / or cellulose and peroxisomes.
• A comprehensive'origin of sex as vaccination'theory proposes that eukaryan sex-as-syngamy ( fusion sex ) arose from prokaryan unilateral sex-as-infection when infected hosts began swapping nuclearised genomes containing coevolved, vertically transmitted symbionts that provided protection against horizontal superinfection by more virulent symbionts.