Two, one from each parent.
The alleles that a person has The genes that a person has
Alleles are the different types of genes.
The gene loci are the sites where the alleles reside on the DNA strand. Alleles at the same gene locus on each chromosome pair will determine the phenotypic expression of that gene pair. Of course this explanation is incomplete when more complex interactions between alleles come into play
Dominant allele disorders are single gene disorders which take effect in the heterozygous state.
Different versions of the same gene are called
An allele of a gene resides on a chromosome; as there are typically two chromosomal copies in an individual Cell, there are typically two alleles of each and every gene in the individuals genome, or its genetic complement.
The alleles that a person has The genes that a person has
Each gene has a dominate and recessive allele, so there are two types of alleles in each gene. The dominate allele is stronger than the recessive allele unless there are two recessive alleles.
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A gene can have multiple forms, which are called Alleles. While a single gene may code for a trait in an organism, when multiple alleles exist for that gene, each different may produce a different character of that trait. For example, a person has two copies of the gene that codes for ABO blood type. There are three different alleles for this gene, A, B and O. This results in six different combinations of the alleles that the person can have (the genotype), which in turn results in four expressions of the gene in the person (called the phenotype), which is the blood type of the person.
No they are alternative versions of a gene.
One of the different alleles would be at the same gene locus on each of the paired chromosomes.
alleles
there are the same number of alleles per gene in each stage of meiosis since the number of alleles per gene only tells the possible differences in a gene, such as the alleles for blue, green, and brown eyes being the possible traits to be combined.
We call a gene that has two different alleles heterozygous.
When the gene is dominant and the traits are autosomal.
Alleles are the different types of genes.