Ovum

An ovum (plural ova) is a female sex cell or gamete. The word is derived from Latin, meaning egg or egg cell. The human ovum measures on average, 145 µm in diameter. Both animals and seed plants have ova.
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ovum The female gamete, egg.
oxidation The loss of electrons from the outer shell of an atom; often accompanied by the transfer of a proton and thus involves the loss of a hydrogen ion. The loss of electrons or hydrogens in a chemical reaction.
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ovum pl. ova
(oh-vum) [L. egg]
The female gamete; the haploid, unfertilized egg, which is usually a relatively large, nonmotile cell.
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ovum Mature female germ cell (egg).
oxidation The loss of an electron by an atom or molecule; sometimes addition of oxygen chemically to a substance. Opposite of reduction, in which an electron is accepted by an atom or molecule.
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ovum [L. ovulum - egg]. Mature female gamete or egg cell.
P
pachytene [Gr. pachytes - thickness; Gr. tainia - ribbon]. The third stage in prophase 1 of meiosis in which there is further shortening and thickening of the bivalents.
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ovum (pl. ova)
A functional egg cell of an animal, produced by gametogenesis. Ova are frequently packed with nutritive yolk granules and are usually immobile.
Covered in:
Lab 14 Gametogenesis and Development
Lab 17 Rat and Frog Comparative Anatomy ...
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The ovum
The spermatozon
Fertilization of the ovum
Segmentation of the fertilized ovum
The neural groove and neural tube
The notochord
The primitive segments
Separation of the embryo
The yolk-sac ...
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a mature germ cell, ovum or spermatozoon
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row
mature male or female sex cell ...
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(See Reading frame.) Ovum. A female gamete. P Paleontology. The study of the fossil record of past geo- logical periods and of the phylogenetic relationships between ancient and contemporary plant and animal species. Palindrome.
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Mature male or female reproductive cell (sperm or ovum) with a haploid set of chromosomes (23 for humans).
Dioecious
Organisms whose individuals produce only one type of gamete; i.e. humans (either male or female). See monoecious.
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Gamete Mature male or female reproductive cell (sperm or ovum) with a haploid set of chromosomes (23 for humans).
GC-rich area Many DNA sequences carry long stretches of repeated G and C which often indicate a gene-rich region.
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a thick extracellular matrix surrounding the mammalian ovum (egg) which binds sperm and initiates the acrosome reaction of the sperm.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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[Gr. zygotos - yoked together]. The fertilized ovum which results from the fusion of the male and female pronuclei (before the first cleavage division).
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: The union of one male gametophyte nucleus with the ovum nucleus and another male gametophyte nucleus with the polar nuclei to form the endosperm in seed plants. See also
pollen grain
.
Double heterozygote ...
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egg -- (1) A large gamete without flagellae that is fertilized by a sperm cell. An egg cell is also called an ovum. (2) A complex multicellular structure in which an animal embryo develops.
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Gamete: Mature male or female reproductive cell (sperm or ovum) with a haploid set of chromosomes (23 for humans).
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