Genetic Code – definition

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 […]

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Genome – what is and definition

Genome Definition Genome – the total genetic material, including coding and noncoding sequences, a cell contains in its chromosomes. Each organism has a unique genome. Scientists define the size of a genome by the number of its base pairs. The human genome contains 3.2 billion base pairs, which make up that comprise about 23,000 genes. See […]

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Genotype – what is and definition

Genotype Definition Genotype – the contents of an individual’s GENETIC CODE. The genotype directs the structures and functions of the human body. A person’s genotype is to the human body what an architect’s blueprint is to a house: It provides the directions for the construction and operation of the human organism. See also GENOME; KARYOTYPE; PHENOTYPE. Genotype – what […]

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Inheritance Patterns – types, traits and mutations

Inheritance Patterns Definition Inheritance Patterns – the ways in which genotypes pass among individuals and generations. Many inherited traits are either autosomal or Xlinked and either dominant or recessive. Such inheritance patterns reflect statistical calculations assessing the mathematical likelihood of certain traits or mutations passing from one generation to the next. Inheritance patterns consider the genotypes […]

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Nucleotide – definition

Nucleotide Definition Nucleotide – a structural component of DNA and RNA. A DNA nucleotide contains deoxyribose and a nitrogen base of adenine, guanine, thymine, or cytosine, which form pairs called base pairs. An RNA nucleotide contains ribose and a nitrogen base of paired adenine, guanine, uracil, or cytosine. Each DNA or RNA molecule contains thousands of nucleotides. The order […]

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