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Each generation of offspring has increased severity of a genetic disorder; e.g., a grandchild may have earlier onset and more severe symptoms than the parent, who had earlier onset than the grandparent.
See also: additive genetic effects, complex trait.
Industry:Biology
A protein or part of a protein made of a chain of amino acids joined by a peptide bond..
Industry:Biology
The study of genes, their resulting proteins, and the role played by the proteins the body's biochemical processes..
Industry:Biology
Nucleic acid that has a sequence exactly opposite to an mRNA molecule made by the body; binds to the mRNA molecule to prevent a protein from being made.
See also: transcription.
Industry:Biology
The study of variation in genes among a group of individuals..
Industry:Biology
Mature male or female reproductive cell (sperm or ovum) with a haploid set of chromosomes (23 for humans)..
Industry:Biology
Programmed cell death, the body's normal method of disposing of damaged, unwanted, or unneeded cells.
See also: cell.
Industry:Biology
A technique used to identify genes, usually those that are associated with diseases, based on their location on a chromosome..
Industry:Biology
A method of studying chromosomes in the interphase stage of the cell cycle..
Industry:Biology