Alleles are variants of the same gene that occur on the same place on a chromosome. (Through a mutation, they are different.) A locus refers to the location on the chromosome where the gene is found.
What is the difference between an allele a gene and a locus quizlet?
What is the difference between a locus and an allele? An allele is an alternate form of a gene and a locus is the location of that gene on a chromosome.
What is gene allele and locus?
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.
What is the key difference between alleles and locus?
The key difference between allele and locus is that the allele refers to one of the two or more alternative sequences of a gene at a certain locus while the locus refers to a certain location on a chromosome where a gene can be found.
Is a locus an allele?
In genetics, a locus (plural loci) is a specific, fixed position on a chromosome where a particular gene or genetic marker is located. … Genes may possess multiple variants known as alleles, and an allele may also be said to reside at a particular locus.
What is the relationship between a gene and an allele quizlet?
What is the difference between a gene and an allele? A gene is a specific section of a chromosome where the base pairs that code for the characteristic are stored whereas an allele is the actual sequence of the base pairs in the section.
Is CF allelic heterogeneity?
There are several examples where allelic heterogeneity has been observed, such as β-thalassemias, in which several mutations in β-globin locus cause the disease phenotype. Different mutations in dystrophin locus causes Duchenne dystrophy, and multiple mutations in CFTR cause cystic fibrosis.