amale and female gamete release. 男性和女性配子发行。[translate] aThis was a night when even hardened political leaders wanted a hand to hold, a night they knew that one performance had the potential to shape their whole future, a night of a huge opportunity but also a massive risk. 这是...
At some point it began to dawn on observers that the collective stage upon which all entities moved about was actually also some kind of entity — collective, and thus a motherly female:θεα(thea), or "goddess" — and this pattern of thought is still clearly visible in various Greek te...
To answer the question "Name three groups of plants that bear archegonia," we can follow these steps:1. Understand Archegonia: - Archegonia are the female reproductive structures in certain plants. They are responsible for
hermaphroditenoun(n.) An individual which has the attributes of both male and female, or which unites in itself the two sexes; an animal or plant having the parts of generation of both sexes, as when a flower contains both the stamens and pistil within the same calyx, or on the same ...
Some of these haploid plants set seed in up to 50% of their self-pollinated spikelets. The high fertility was found to be mainly caused by formation of numerically unreduced female and male gametes (n unreduced = 3x + 0 … 3 = 21 … 24 chromosomes). Gamete formation involves meiotic ...
36, 37 There is some evidence that when primary infection occurs close to the time of menarche, there is an increased likelihood of genital tract involvement.38 Most pathologists state that primary infection of the female genital organs does not occur. It is known that tuberculous foci may ...
Step-by-Step Solution:1. Definition of Triple Fusion: - Triple fusion is a process in flowering plants where one male gamete nucleus fuses with two polar nuclei. This results in the fusion of three nuclei,
2) A female with a paternal set of one orange and one long gene chromosomes and a maternal set comprised of one blue and one short gene chromosome is expected to produce which of the following types of eggs after meiosis? 2) A) Each egg has 1/4 chance of having blue long, blue ...
Preventing sperm phagocytosis by white blood cells within the female reproductive tract Providing a biochemical environment sufficient for sperm storage, capacitation, and migration The structure of the human cervix facilitates performance of the these stated functions. The endocervical canal has an average...
Sexual differentiation, which is probably determined genetically, involves recognition at the cell surface as well as differences in gamete behavior (one gametangium produces an active "male" gamete, the other a passive "female" gamete). In culture, successful sexual reproduction occurs only when ...