The expression of a specific trait in an individual (such as hair color) is determined by two factors,
one from each parent. These factors are represented with an uppercase letter for a dominant
factor and a lowercase letter for a recessive factor. The combination of these factors determines
how that trait will be expressed in an individual.
Alleles are pairs of genes that determine a specific trait in an organism. Each parent contributes one allele, and the combination of alleles determines how the trait is expressed. If the alleles are the same (homozygous), the trait will be expressed in a certain way. If the alleles are different (heterozygous), one allele may be dominant and determine the trait's expression, while the other may be recessive and not expressed.
ABO blood group expression is an example of a genetic trait that is determined by multiple alleles. The ABO blood group system is controlled by three alleles (IA, IB, i), which determine the presence or absence of antigens on red blood cells. The combination of these alleles in an individual's genotype determines their blood type.
An allele is one of the possible variations of a gene that can determine a specific trait. Alleles come in pairs, with one allele inherited from each parent, and the combination of alleles present determines the expression of the trait.
When two recessive alleles are inherited, the trait associated with those alleles is observed because there is no dominant allele to mask its expression. This results in the individual displaying the recessive trait.
The term used to refer to the actual combination of two sets of alleles for the same trait is homozygous.
genotype
genotype
Alleles are pairs of genes that determine a specific trait in an organism. Each parent contributes one allele, and the combination of alleles determines how the trait is expressed. If the alleles are the same (homozygous), the trait will be expressed in a certain way. If the alleles are different (heterozygous), one allele may be dominant and determine the trait's expression, while the other may be recessive and not expressed.
A hybrid allele is a combination of alleles from two different parents for a specific trait. It can have two different alleles that may interact in various ways to determine the trait expression.
ABO blood group expression is an example of a genetic trait that is determined by multiple alleles. The ABO blood group system is controlled by three alleles (IA, IB, i), which determine the presence or absence of antigens on red blood cells. The combination of these alleles in an individual's genotype determines their blood type.
heterogenous
Eye Colour
An allele is one of the possible variations of a gene that can determine a specific trait. Alleles come in pairs, with one allele inherited from each parent, and the combination of alleles present determines the expression of the trait.
Polygenic
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When two recessive alleles are inherited, the trait associated with those alleles is observed because there is no dominant allele to mask its expression. This results in the individual displaying the recessive trait.
The term used to refer to the actual combination of two sets of alleles for the same trait is homozygous.