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When does an oocyte complete meiosis II?
Meiosis II is completed after entry of sperm.
When a mature egg is removed from the female body for fertilization outside of the body?
This process is called in vitro fertilization (IVF). The mature egg, along with sperm, is fertilized in a laboratory dish. Once fertilization occurs and the embryo(s) develop, they may be transferred back into the uterus for implantation and pregnancy.
When does fertilization of the ovum happen?
Fertilization of the ovum typically occurs within 24 hours after ovulation, when a mature egg is released from the ovary. Sperm must reach the egg during this window to successfully fertilize it, usually taking place in the fallopian tubes. Once a sperm penetrates the egg, fertilization is complete, resulting in the formation of a zygote. This process marks the beginning of embryonic development.
Why a banana is a angiosperm but with no seed?
A banana is classified as an angiosperm because it is a flowering plant that produces fruits containing seeds. However, many cultivated varieties of bananas, particularly the popular Cavendish type, are seedless due to parthenocarpy, a process where the fruit develops without fertilization. These bananas are propagated asexually through vegetative means, such as planting rhizomes or suckers, which allows them to maintain their desirable traits without seeds. Thus, while bananas are angiosperms, the common cultivated varieties do not contain mature seeds.
What is the dominant phase of an angiosperm life cycle?
The dominant phase of an angiosperm life cycle is the sporophyte phase. This is the phase where the plant is in its mature form, producing flowers and seeds through the process of sexual reproduction. The sporophyte phase is the main phase where growth and development occur in angiosperms.
Where are the seeds located in angiosperm plants?
Seeds in angiosperm plants are typically found within the ovary of the flower, which develops into a fruit once fertilization occurs. The seeds are contained within the ovary's ovules, which undergo fertilization and develop into mature seeds within the fruit.
What is the purpose of the flower on a mature plant?
The flower is the reproductive organ of angiosperm mature plants.
What type of fertilization procedure in which mature mature ova are removed from the mother to be fertilized?
in vitro fertilization
When does the secondary oocyte complete its second meiotic division to become a mature ovum?
The secondary oocyte completes its second meiotic division upon fertilization by a sperm cell. This leads to the formation of a mature ovum and a polar body.
What normally happens after fertilization in sexual reproduction?
After fertilization in sexual reproduction the zygote is formed. The zygote later on develops in to an embryo by embryo-genesis.
What is the union of mature egg cell and sperm cell?
Fertilization
Why used the mature pollen grain in pollen germination experiment?
this is because premature pollen grain do not contain the sperm cell for fertilization. only the generative nucleus in mature pollen grain will divide mitosisly to form sperm cell for fertilization
When a mature egg is removed from the female body for fertilization outside of the body?
This process is called in vitro fertilization (IVF). The mature egg, along with sperm, is fertilized in a laboratory dish. Once fertilization occurs and the embryo(s) develop, they may be transferred back into the uterus for implantation and pregnancy.
When does an oocyte complete meiosis II?
Meiosis II is completed after entry of sperm.
What comes before fertilization in embryology?
Before fertilization in embryology, the egg and sperm undergo a process called gametogenesis where they mature, and then they are released from the ovaries and testes. Once released, they meet during fertilization to form a zygote.
What is the dominant phase of an angiosperm life cycle?
The dominant phase of an angiosperm life cycle is the sporophyte phase. This is the phase where the plant is in its mature form, producing flowers and seeds through the process of sexual reproduction. The sporophyte phase is the main phase where growth and development occur in angiosperms.
Why don't archegonia and antheridia mature at the same time on a prothallus?
Archegonia and antheridia do not mature at the same time on a prothallus to prevent self-fertilization and promote genetic diversity. By producing mature reproductive structures at different times, the prothallus increases the chances of cross-fertilization with gametes from other individuals.
