You need two recessive alleles to get their trait, but only one dominant allele to get that trait. A dominant allele basically overrides a recessive one if they are together, but the recessive gene can show up in offspring.
A dominant alle masks the expression of the recessive trait in a heterozygous genotype, a recessive allele is the phenotpye expressed is the recessive trait.
Alleles can be dominant or recessive
Alleles are different versions of a gene that can code for different traits. The two forms of alleles are dominant and recessive. Dominant alleles mask the effects of recessive alleles when present together in an individual's genotype.
A gene with one completely dominant allele and two recessive alleles can produce two different traits. The dominant allele will express its trait regardless of whether it is paired with another dominant or a recessive allele, while the two recessive alleles will express their trait only when paired together. Therefore, the possible combinations of alleles result in one dominant trait and one recessive trait.
Genes can exist in different forms called alleles. Dominant alleles are expressed when present, masking the effects of recessive alleles. Recessive alleles are only expressed when two copies are present, one from each parent. This results in a wide range of possible genetic combinations and expressions.
Dominant alleles are shown by a capital letter and recessive alleles are lowercase letters.
Dominant alleles are shown by a capital letter and recessive alleles are lowercase letters.
A gene pair that consists of 2 dominant or 2 recessive alleles is considered homozygous dominant or homozygous recessive.
Dominant alleles :-)
The two terms for having matching alleles for a certain trait are "homozygous dominant" (two dominant alleles) and "homozygous recessive" (two recessive alleles).
Dominant alleles are written in upper case (i.e, 'A'), while recessive alleles are lower case (i.e, 'a')
In eyes, it would be brown is dominant, and blue is recessive. Free earlobe allele is said to be dominant over the attached earlobe allele. When an organism has two dominant alleles for a trait, it is called homozygous dominant. Two recessive alleles for a trait is homozygous recessive.