Genome

Genome

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Genome

single nucleotide polymorphism (SNP)

Biology; Genome

DNA sequence variations that occur when a single nucleotide (A, T, C, or G) in the genome sequence is altered. See also: mutation, polymorphism, single-gene disorder.

mendelian inheritance

Biology; Genome

One method in which genetic traits are passed from parents to offspring. Named for Gregor Mendel, who first studied and recognized the existence of genes and this method of inheritance. See also: ...

comparative genomics

Biology; Genome

The study of human genetics by comparisons with model organisms such as mice, the fruit fly, and the bacterium E. coli..

single-gene disorder

Biology; Genome

Hereditary disorder caused by a mutant allele of a single gene (e.g., Duchenne muscular dystrophy, retinoblastoma, sickle cell disease). See also: polygenic disorders.

metaphase

Biology; Genome

A stage in mitosis or meiosis during which the chromosomes are aligned along the equatorial plane of the cell..

Nucleic acid base sequence that can form a double-stranded structure with another DNA fragment by following base-pairing rules (A pairs with T and C with G). The complementary sequence to GTAC for ...