null allele


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Related to null allele: Null mutation

null allele

[′nəl ə‚lēl]
(genetics)
An allele that does not produce a functional product and behaves as a recessive.
References in periodicals archive ?
Half of the VNTR loci (VNTR-3, VNTR-9, VNTR-36, and VNTR-37) showed null alleles with different frequencies ranging from 2.
The marker reported here clearly discriminates the normal allele (Wx-B1a) and the null allele (Wx-B1b) coming from DHWx12.
Inherited chronic obstructive pulmonary disease: new selective-sequencing workup for alpha1-antitrypsin deficiency identifies 2 previously unidentified null alleles.
Null allele frequencies are presented for EM (Chapuis & Estoup 2007) and ML (Kalinowski & Taper 2006) methods.
The summary statistics from CERVUS showed that 8 loci were suitable for parentage analysis because all loci showed unambiguous genotypes, null allele frequencies less than 0.
59 g/L, phenotyping detected only an S allele, which, in conjunction with the genotype and MAT quantification, suggested that the other chromosome carries a null allele.
The apparently low heterozygosity found in some populations at Ots102 may have been partially due to the presence of a null allele.