sex cells
gametes. In the male it is the sperm and in the female it is the egg.
similar gametes (sex cells)
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
...
A germ line is the sex cells (eggs and sperm) that are used by sexually reproducing organisms to pass on genes from generation to generation.
Meiosis Cell division to produce sex cells. Sometimes called "reductive division" as the number of chromosome in each cell is halved.
Messenger RNA (mRNA) RNA that serves as a template for protein synthesis.
Sex cells are known collectively as gametes (gamos, Greek, meaning marriage).
Formation of new individual by a combination of two haploid sex cells (gametes).
Fertilization- combination of genetic information from two separate cells that have one half the original genetic information ...
The term coined by Farmer and Moore (1905) for the process of two consecutive cell divisions in the diploid progenitors of sex cells. Meiosis results in four rather than two daughter cells (gametes), each with a haploid set of each chromosome pair.
Somatic cells: Any cell in the body except sex cells.
Template: a single DNA strand that serves as pattern for building a new second strand.
Thymine (T): A base; one of the molecular components of DNA and RNA. Always bonds with adenine (T-A).
Meiosis occurs in the gonads to make gametes (sex cells) called sperm and eggs. Plants make pollen in the stamens (male parts) and ovules in the ovary (female part). There are many variations on this basic theme of making male and female gametes.
The process of two consecutive cell divisions in the diploid progenitors of sex cells. Meiosis results in four rather than two daughter cells, each with a haploid set of chromosomes.
Source : Human Genome Project Information
Messenger RNA (mRNA) ...
Cytokinesis: The division of the cytoplasm, separating the organelles and other cellular components.
Meiosis: The division of the nucleus in sex cells, making one cell into four sex cells identical to the parent sex cell.
Most diploid organisms produce haploid sex cells that can combine to form a diploid zygote, for example animals are primarily diploid but produce haploid gametes.
Recombination occurs naturally in plants and animals during the production of sex cells (sperm, eggs, pollen) and their subsequent joining in fertilization. In microbes, genetic material is recombined naturally during conjugation.
Anisogamy: Sexual reproduction in which one sex produces sex cells much larger (egg) than those of the other (sperm).
[Gr. gamos - a marriage; Gr. genesis - origin, descent]. The formation of male and female sex cells or gametes (spermatozoa and ova, respectively) from germ cells.
sexual reproduction A system of reproduction in which two haploid sex cells (gametes) fuse to produce a diploid zygote. PICTURE ...
Some cells of multicellular organisms must divide to produce sex cells (gametes).
Mitosis ...
Meiosis a special cell division resulting in sex cells with half as many chromosomes
(meio = less; -sis = the act of) ...
Most DNA is mixed up when the sperm and egg fuse, the DNA of the sperm and the egg are mixed together, and then when that individual grows up and starts to make sex cells, eggs or sperm, those cells then scramble up the DNA even further, ...
mutation A change, either spontaneous or by external factors, in the genetic material of a cell; mutations in the gametes (sex cells) can be inherited by future generations of organisms.
Gametes being haploid are essential particularly during fertilization. The union of two sex cells, each with only haploid number of chromosomes, results in a diploid zygote.
 See also: Cells, Sex, Gamete, Gametes, Chromosome
|
