Genetic Code - definition

Genetic Code - definition - picture » Genetics and Molecular Medicine » Genetic Code - definition

Genetic Code - the organizations of nucleotides (DNA sequences) within messenger RNA into triplet structures called trinucleotides or codons. The codons convey the order of amino acids for the structure of the protein for which a particular GENE encodes. The process of protein synthesis takes place in the ribosomes in the cell cytoplasm; the messenger RNA carries the encoding to the ribosomes.


Resource: Facts On File Encyclopedia Of Health And Medicine

Each atricle being rated on a scale of 1 to 5 stars.
Please rate this article
Article Rating: 2,6 stars of 5

Discussion and opinions:

Insert your opinion:

Tweet this page

Other Articles

RNA - ribonucleic acid - what is, definition and function

Genetics and Molecular Medicine |

RNA - the abbreviation for ribonucleic acid. RNA is a single-strand molecule consisting of ribose; a sugar; and nucleotides made up of the nitrogen bases adenine, uracil, guanine, and cytosine. RNA exists in a number of forms, all of which serve as biochemical messengers that carry the instructions of DNA to the ribosomes, structures in the cell’s

DNA - deoxyribonucleic acid - definition and function

Genetics and Molecular Medicine |

DNA - the abbreviation for deoxyribonucleic acid. DNA is the molecule of heredity; its sequences form the body’s GENETIC CODE. Each cell in the body contains DNA within the chromosomes in its nucleus (except erythrocytes, which do not have nuclei). DNA has a characteristic double-helix structure that resembles a gently twisting ladder. The supporting

Gene - what is, definition and function

Genetics and Molecular Medicine |

Gene is a segment of coding DNA (DNA that instructs the structure and function of cells throughout the body) composed of a specific sequence of nucleotides. The gene is the basic unit of inheritance that directs every facet of the body’s appearance and functions. Genes align along chromosomes in pairs. Each CHROMOSOME (AUTOSOME) contains thousands of

Stem Cell - what is, function and information

Genetics and Molecular Medicine |

Stem Cell - an undifferentiated, primal cell that has the capability to endlessly divide and develop into numerous types of cells. Totipotent stem cells exist primarily in the early EMBRYO (blastocyst) and can differentiate into (become) virtually any type of cell in the body. As the body becomes more complex and develops beyond the blastocyst stage, stem

Allele - what is, definition and blood type

Genetics and Molecular Medicine |

Allele - any of the variations of a GENE that may occupy the same position (locus) on a CHROMOSOME. The gene controlling a particular trait or function always occupies the same locus on the same chromosome. Genes occur as pairs, with one gene coming from each parent. The pairing determines how the gene’s traits are expressed in the individual. For

Apoptosis - definition and cell death

Genetics and Molecular Medicine |

Apoptosis - the natural mechanism through which a cell engages in actions that lead to its death, often called programmed cell death or cell suicide. Apoptosis appears linked to SENESCENCE, an inherent limitation on the number of times a cell can divide. Both apoptosis and senescence play significant roles in the aging process. Once the cell initiates

Autosomal Trisomy - definiton

Genetics and Molecular Medicine |

Autosomal Trisomy is a chromosomal disorder in which there are three instead of the normal two copies of an AUTOSOME (nonsex chromosome). An autosomal trisomy may be complete (affect all cells) or mosaic (affect only some cells). The most commonly occurring complete autosomal trisomies that are survivable are those involving chromosomes 21, 18, and 13,

Autosome - definition

Genetics and Molecular Medicine |

Autosome is a CHROMOSOME that appears as a pair in which both chromosomes are the same in either sex, also called a nonsex chromosome. In contrast, the sex chromosomes appear as a pair that is different in males and females. The human GENOME contains 22 autosomes and one pair of sex chromosomes for a total complement of 46 chromosomes as 23 pairs.

Chromosome - what is, definition and function

Genetics and Molecular Medicine |

Chromosome is a coiled DNA molecule within the cell’s nucleus that carries an individual’s GENETIC CODE. Most of the time the chromosome’s structure is loose and indistinguishable. Only in the stage of cell division immediately before the cell divides (the metaphase) does the chromosome draw itself into a compact, rodlike structure the

Cloning of humans - what is and definition

Genetics and Molecular Medicine |

Cloning - the creation of exact copies of a GENE, cell, or entire organism. Such exact copies occur naturally when a ZYGOTE divides to become identical multiples such as twins or, less commonly, triplets. Manipulated cloning is primarily a research method at present, though scientists use cloning for therapeutic applications in creating RECOMBINANT DNA