Oogenesis produces an ovum (egg) as the female gamete.
The type of organism produced by cross pollination is a hybrid. Hybrids often exhibit a combination of characteristics from the parent plants, resulting in a unique set of traits. This genetic variability is a key advantage of cross pollination in breeding programs.
Gamete A gamete (from Ancient Greek γαμέτης gametes "husband" / γαμετή gamete "wife") is a cell that fuses with another cell during fertilization (conception) in organisms that reproduce sexually. In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete-called an ovum (or egg)-and a male produces the smaller tadpole-like type-called a sperm. This is an example of anisogamy or heterogamy, the condition wherein females and males produce gametes of different sizes (this is the case in humans; the human ovum is approximately 20 times larger than the human sperm cell). In contrast, isogamy is the state of gametes from both sexes being the same size and shape, and given arbitrary designators for mating type. The name gamete was introduced by the Austrian biologist Gregor Mendel. Gametes carry half the genetic information of an individual, 1n of each type.
Both male and female organisms produce only one type of gamete. The female gamete is the ovum (or egg) and the male gamete is sperm. Both gametes fuse together at the first stage of fertilization.
The gametes are formed in the gonads, which also have hormonal functions. A gamete is a mature haploid male or female germ cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
Males produce only one type of gamete - the sperm cell, or spermatozoon.
Sperm is the type of gamete produced by an antheridium in some organisms, such as algae and bryophytes. It is a small, motile male gamete that fertilizes the egg to form a zygote.
gamete
The type of organism produced by cross pollination is a hybrid. Hybrids often exhibit a combination of characteristics from the parent plants, resulting in a unique set of traits. This genetic variability is a key advantage of cross pollination in breeding programs.
Nondisjunction in meiosis occurs when chromosomes fail to separate properly, leading to an incorrect distribution of chromosomes in the resulting gametes. If a nondisjunction event happens in meiosis I or meiosis II, it can result in a gamete with an extra set of chromosomes (diploid), rather than the normal haploid number.
Spermatogenesis takes place in the testes of males, oogenesis takes place in the ovary of the females.Spermatogenesis produces small, motile spermatozoa whereas in oogenesis the ovum is spherical, not motile and is much larger with more food reserves and cytoplasm.Spermatogenesis involves a metamorphosis stage called spermiogenesis, in oogenesis there is no metamorphosis stage.In spermatogenesis, 4 gametes are produced from each meiotic division, whereas in oogenesis there is only 1 gamete produced from each division as the unequal cytokinesis leads to the formation of polar bodies.Spermatogenesis occurs in males (human males) continuously from puberty to death whereas oogenesis starts in females in the fetal period. It takes 70 days for sperm to be produced in males.In oogenesis, the development of the oocyte is arrested at prophase I of meiosis until puberty, and then stops at metaphase II of meiosis until fertilization, where the meiotic division is finally completed. In males meiosis occurs continuouslyThe hormones in the 2 processes have different effects - in oogenesis, FSH is responsible for the choice of the primary oocyte and causes the cells of the membrana granulosa to proliferate to form the theca interna which secretes oestrogen, and the theca externa. LH in females stimulates ovulation and the maturation of the Graafian follicle. In males, on the other hand, FSH increases the activity of the Sertoli cells which are involved in spermiogenesis (the metamorphosis stage of spermatogenesis). LH in males stimulates the Leydig cells to secrete testosterone.
Gamete A gamete (from Ancient Greek γαμέτης gametes "husband" / γαμετή gamete "wife") is a cell that fuses with another cell during fertilization (conception) in organisms that reproduce sexually. In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete-called an ovum (or egg)-and a male produces the smaller tadpole-like type-called a sperm. This is an example of anisogamy or heterogamy, the condition wherein females and males produce gametes of different sizes (this is the case in humans; the human ovum is approximately 20 times larger than the human sperm cell). In contrast, isogamy is the state of gametes from both sexes being the same size and shape, and given arbitrary designators for mating type. The name gamete was introduced by the Austrian biologist Gregor Mendel. Gametes carry half the genetic information of an individual, 1n of each type.
Both male and female organisms produce only one type of gamete. The female gamete is the ovum (or egg) and the male gamete is sperm. Both gametes fuse together at the first stage of fertilization.
The gametes are formed in the gonads, which also have hormonal functions. A gamete is a mature haploid male or female germ cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
Sperm
Electric field is produced
meiosis :)
sound energy