An amorph is a mutated allele that has lost the ability of the parent allele (whether wild type or any other type) to encode any functional protein. An amorph mutation, or null, is the loss of genetic information for the synthesis of appropriate mRNA. Depending on the relationships of the parent allele, an amorphous mutant can have various forms of gene interactions.[1][2]

The term "amorph" was used by Hermann Joseph Muller in 1932.[citation needed]

See also

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References

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  1. ^ Lawrence E., ed. (1999). Henderson's Dictionary of biological terms. London: Longman Group Ltd. ISBN 0-582-22708-9.
  2. ^ Rieger R.; Michaelis A.; Green M. M. (1976). Glossary of genetics and cytogenetics: Classical and molecular. Berlin - Heidelberg - New York: Springer-Verlag. ISBN 3-540-07668-9.


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Amorph

Look up amorph in Wiktionary, the free dictionary. Amorph may refer to: Amorph (gene), a type of mutated allele Amorphous solid Amorpha, a genus of plants

Muller's morphs

amorph, hypomorph, hypermorph, antimorph and neomorph to classify mutations based on their behaviour in various genetic situations, as well as gene interaction

Lewis antigen system

gene is an amorph. The Lewis antigen produced on free type 1 precursor substance passively adsorbs onto the surfaces or red blood cells. The Se gene encodes

Index of genetics articles

codon Ames test Amino acid Amino acid sequence Amino acids Amniocentesis Amorph AMP Amphidiploid Amplification Anagenesis Anaphase Aneuploid Aneuploid cell

Mutation

allele has a complete loss of function (null allele), it is often called an amorph or amorphic mutation in Muller's morphs schema. Phenotypes associated with

Rh deficiency syndrome

The condition is caused by silent alleles at the RH locus (amorph type) or suppressor genes unrelated to the locus (regulator type) that individuals inherit

Protist

the 1990s, molecular phylogenetic analyses based primarily on the SSU rRNA gene demonstrated that protists were a paraphyletic assemblage of clades spanning

Isomorph (gene)

In Muller's classification, an isomorph is described as a gene mutation that expresses a nonsense point mutant, with expression identical to the original