gamete


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Related to gamete: gamete intrafallopian transfer, meiosis, female gamete

gamete

 [gam´ēt]
1. one of two haploid reproductive cells, male (spermatozoon) and female (oocyte), whose union is necessary in sexual reproduction to initiate the development of a new individual.
2. the malarial parasite in its sexual form in a mosquito's stomach, either male (microgamete) or female (macrogamete); the latter is fertilized by the former to develop into an ookinete. adj., adj gamet´ic.

gam·ete

(gam'ēt),
1. One of two haploid cells that can undergo karyogamy.
2. Any germ cell, whether oocyte or sperm.
[G. gametēs, husband; gametē, wife]

gamete

/gam·ete/ (gam´ēt)
1. one of two haploid reproductive cells, male (spermatozoon) and female (oocyte), whose union is necessary in sexual reproduction to initiate the development of a new individual.
2. the malarial parasite in its sexual form in a mosquito's stomach, either male (microgamete) or female (macrogamete); the latter is fertilized by the former to develop into an ookinete.gamet´ic

gamete

(găm′ēt′, gə-mēt′)
n.
A reproductive cell having the haploid number of chromosomes, especially a mature sperm or egg capable of fusing with a gamete of the opposite sex to produce a zygote.

ga·met′ic (-mĕt′ĭk) adj.
ga·met′i·cal·ly adv.

gamete

[gam′ēt]
Etymology: Gk, marriage partner
1 a mature male or female germ cell that is capable of functioning in fertilization or conjugation and contains the haploid number of chromosomes of the organism.
2 an ovum or a spermatozoon. See also meiosis. gametic, adj.

gamete

Genetics A mature ♀ or ♂ reproductive cell–sperm or ovum/egg with a haploid set of chromosomes–23 for humans. See Chromosome, Haploid, Macrogamete, Microgamete, Nullisomic gamete.

gam·ete

(gam'ēt)
1. One of two haploid cells undergoing karyogamy.
2. Any germ cell, whether oocyte or sperm.
[G. gametēs, husband; gametē, wife]

gamete

A cell, such as a sperm or ovum, possessing half the normal number of chromosomes (haploid) and capable of fusing with another gamete in the process of fertilization, so that the full (diploid) number of chromosomes is made up. From the Greek gamos , marriage.

gamete

or

germ cell

a specialized HAPLOID cell that fuses with a gamete from the opposite sex (or mating type) to form a diploid ZYGOTE. In simple organisms, the process is called isogamy (see ISOGAMETE), and OOGAMY in more complex organisms. In animals where oogamy occurs male gametes are called sperm, the female gametes eggs. The situation in higher plants is more complicated, but essentially the male gamete is the generative nucleus found in the POLLEN GRAIN while the female gamete is the egg cell found within the EMBRYO SAC.

Gamete

An egg (ovum) from the female or a mature sperm from the male.
Mentioned in: Infertility Therapies

gamete

a haploid germ cell; one of two cells, male (spermatozoon) and female (ovum), whose union is necessary in sexual reproduction to initiate the development of a new individual.
References in periodicals archive ?
Section 8 of the Act prohibits the use of human reproductive material to create an embryo without the written consent of the gamete donors, and it prohibits the use of in vitro embryos for any purpose without the consent of the donor.
In contrast, Canada has consistently rejected the idea of payment for donations of organ, body tissue and blood, and the federal government has opposed commercialization of gamete and embryo donation and surrogacy.
Consistent with having practiced safe sex throughout nine years of marriage, to avoid the risk of transmitting the HIV to her husband, they opted to procreate via IVF using their own gametes.
Our current practice of paying gamete donors runs the danger that we will place price tags not only on each part of the reproductive process, but ultimately on the entire process itself, thereby succumbing to baby-selling.
In most cases, nonidentifying information on the gamete provider's genetic and medical history will suffice.
At sites where mussel populations are exposed to lipophilic organic contaminants such as petroleum hydrocarbons and PCBs, lipid accumulation is reduced, gamete formation is impaired, and reproductive output is diminished.
Despite the use of donated oocytes and embryos for aged women after 40, the risk of gamete and embryo related complications such as genetic and congenital birth defects has been reduced somewhat, but these options are more expensive and are not available for all aged women and also raises some legal, psychological and social issues (1).
Fertilization efficiency (proportion of the eggs fertilized) is dependent on the synchrony of gamete release by the contributing parents, their proximity to one another, local mixing and dilution effects at various scales of the overlaying water, half-life of viability of the gametes, probability of encounter and fertilization of the individual gametes, and more.
The provisions in the Act restricting payment for the importation, acquisition or supply of tissue, blood, blood products or gametes are specific: it is an offence for a donor of tissue, a gamete, blood or a blood product to receive financial or other reward for such donation except for reimbursing their reasonable costs incurred (e.
Gamete intrafallopian transfer (GIFT) and zygote intrafallopian transfer (ZIFT) are two variations on IVF.
697) would expand coverage for fertility treatments by requiring insurance carriers to cover technologies such as in vitro fertilization, gamete intrafallopian transfer, and intracytoplasmic sperm injection.