Diseases that mimic ALS. I am 35 yr Female, since December of 2010 I have had twitching in my legs,arms, feet and hands. Recently I have lost muscle in my hand (pinky joint with mild cramping) and forearm, right buttocks (large indent) and both thighs.
Jump to: navigation, search ... Deletion. Deletion is a type of mutation involving the loss of genetic material. It can be small, involving a single missing DNA base pair, or large, involving a piece of a chromosome.Narration Transcription ... s are the result of a loss of a section of the genetic material (chromosome) of the cell. If the deleted segment is small or it does not contain critical genes, the effect on the cell may be small. ~. (1) A deficiency in a chromosome resulting from the loss of a fragment through breakage.
Deletion mutation. Definition. noun. A type of gene mutation wherein the deletion (as well as addition) of (a number of) nucleotide (s) causes a shift in the reading frame of the codons in the mRNA, thus, may eventually lead to the alteration in the amino acid sequence at protein translation.Supplement. type of gene mutation wherein the deletion (as well as addition) of (a number of) nucleotide (s) causes a shift in the reading frame of the codons in the mRNA, thus, may eventually lead to the alteration in the amino acid sequence at protein translation. Supplement.