The blue eyed gene and the brown eyed gene in humans.
The two alleles used in the example for seed appearance are R (round) and r (wrinkled).
mulitple alleles
Dominant alleles are written in upper case (i.e, 'A'), while recessive alleles are lower case (i.e, 'a')
An example of a human trait caused by a single gene with multiple alleles is the ABO blood group system. This system is determined by the presence of different alleles at the ABO gene locus, specifically A, B, and O alleles. The combinations of these alleles result in four possible blood types: A, B, AB, and O, illustrating how multiple alleles can influence a single trait.
Homozygous refers to an individual having two identical alleles for a particular gene (i.e., both alleles are the same - either dominant or recessive). This can result in a higher likelihood of expressing a specific trait.
homozygous means you have two alleles with the same characteristic. example; two alleles for brown eyes recessive means that when you have two different alleles, one of then doesn't show its trait example; one allele for brown eyes and one allele for green eyes gives brown eyes, because green eyes are recessive people who have green eyes have homozygous recessive alleles for green eyes (two alleles for green eyes)
The two alleles used in the example for seed appearance are R (round) and r (wrinkled).
Blood type.
mulitple alleles
You're looking at a gene which contains 2 alleles (meaning variations of that gene). Let's call it "A."Remember that you get 2 copies of EACH gene (one from mom, one from dad).
Alleles are different forms of a gene that can produce variations in a specific trait. For example, in eye color, the gene for eye color may have alleles for blue, brown, or green eyes. These alleles determine the specific eye color an individual will have.
Recessive alleles are alleles that are masked or overshadowed by dominant alleles. In a heterozygous genotype, the recessive allele does not show its effects. Only in a homozygous recessive genotype does the recessive allele manifest its trait.
Dominant alleles are written in upper case (i.e, 'A'), while recessive alleles are lower case (i.e, 'a')
The best example possible; blood types!
Eye Colour
Eye Colour
An example of a human trait caused by a single gene with multiple alleles is the ABO blood group system. This system is determined by the presence of different alleles at the ABO gene locus, specifically A, B, and O alleles. The combinations of these alleles result in four possible blood types: A, B, AB, and O, illustrating how multiple alleles can influence a single trait.