Sentences with phrase «homozygous recessive alleles»

Many of endearing unique traits in dog breeds today are the result of homozygous recessive alleles being forever paired together in the future generations.

Not exact matches

We report a variety of biallelic effects on organismal phenotype attributable to combinations of recessive Xpd alleles, including the following: (i) the ability of homozygous lethal Xpd alleles to ameliorate a variety of disease symptoms when their essential basal transcription function is supplied by a different disease - causing allele, (ii) differential developmental and tissue - specific functions of distinct Xpd allele products, and (iii) interallelic complementation, a phenomenon rarely reported at clinically relevant loci in mammals.

Introduction to Inheritance Symbols and Terminology Worksheet: A 2 - page worksheet with 20 opportunities for students to choose appropriate letters to denote dominant and recessive alleles, name homozygous and heterozygous genotypes, determine phenotypes from genotypes, and apply the Principle of Segregation.

Dogs with a dominant KB allele have black coats regardless of their genotype at the A locus; the coat color of dogs homozygous for the recessive ky allele are controlled by A locus.

Recessive traits must have homozygous alleles in order to be expressed.

Testing for this mutation along with Ay and recessive black (a) also allows for the identification of aw alleles in those breeds where it is present.In breeds where only the Ay and at alleles are present, the Ay test can be used to see if the fawn / sable dog is Ay / Ay (homozygous) or only has one Ay (heterozygous).

Genetic transmission of deafness in dogs with the recessive alleles of this pigment gene, such as the Dalmatian (which is homozygous for sw), is less clear.

The Hairless allele (the wild type) is a dominant (and homozygous prenatal lethal) trait, while the Powderpuff allele acts as a simple recessive trait in its presence.