gamete


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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

(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

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
References in periodicals archive ?
Rudick has conducted surveys on gamete freezing, too.
(1) A person may use tissue or gametes removed or blood or a blood product withdrawn from a living person only for such medical or dental purposes as may be prescribed.' The Regulations mirror the Act: 'These regulations only apply to the withdrawal of gametes from and for use in living persons.'
This gave an unprecedented view of how gametes recognize each other in a species-specific way at the beginning of fertilization.
The terminology 'removed or withdrawn' is not only applicable to an egg donor, but to any gamete donor in general.
have the same genetic constitution in the gamete as that of the parent
Most work to date on the consequences of variation in gamete compatibility to fertilization has focused on its implications for individual reproductive success and fitness, in either the context of hybridization (e.g., Rawson et al., 2003) or conspecific processes (e.g., Levitan and Ferrel, 2006; Evans and Sherman, 2013).
At a minimum, the Regulations require the involved competent person to inform the surrogate mother that the commissioning father's gamete donor file is available for her information.
Gamete ageing effect experiment indicated that viability of the gametes for successful fertilization is relatively short.
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.
Any technological means, regardless of the medical and ethical consequences, can be utilized in the pursuit of parenthood if the price is right." (7) Most gamete donations are made anonymously, and Washington is the only state that has passed legislation restricting donor anonymity.
We developed an active-learning exercise to simulate how differences in parental investment, beginning with gamete size, shape reproductive behavior.