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3 天前 · In vitro fertilisation (IVF) is a process of fertilisation where an egg is combined with sperm in vitro ("in glass"). The process involves monitoring and stimulating a woman's ovulatory process , removing an ovum or ova (egg or eggs) from their ovaries and letting a man's sperm fertilise them in a culture medium in a laboratory.
6 天前 · Iron fertilization is the intentional introduction of iron -containing compounds (like iron sulfate) to iron-poor areas of the ocean surface to stimulate phytoplankton production. This is intended to enhance biological productivity and/or accelerate carbon dioxide (CO 2) sequestration from the atmosphere.
1 天前 · Genetic engineering does not normally include traditional breeding, in vitro fertilisation, induction of polyploidy, mutagenesis and cell fusion techniques that do not use recombinant nucleic acids or a genetically modified organism in the process.
2 天前 · in vitro fertilization (IVF), medical procedure in which mature egg cells are removed from a woman, fertilized with male sperm outside the body, and inserted into the uterus of the same or another woman for normal gestation.
- The Editors of Encyclopaedia Britannica
2 天前 · Cucurbitaceae. La margose, melon amer, concombre amer ou momordique ( Momordica charantia ), est une espèce de plantes à fleurs de la famille des Cucurbitaceae. C'est une plante potagère grimpante cultivée dans les climats chauds ou tempérés en annuelle . Le terme "margose" désigne la plante et le fruit ; la plante est parfois nommée ...
3 天前 · Fertilisation is defined as the fusion of the sperm nucleus with the ovum nucleus. For fertilisation to occur, sperm must be deposited in the vagina no earlier than three days before ovulation or within one day after ovulation.
4 天前 · Follicle-stimulating hormone (FSH) is produced by the pituitary gland during the first half of the menstrual cycle. It stimulates development of the maturing ovarian follicle and controls ovum production in the female, and sperm production in the male. Leutenizing hormone (LH) is also produced by the pituitary gland in the brain.
