Heterozygous Inheritance: The Dominant-Recessive Relationship Between Alleles.

Heterozygous

two different alleles for a trait- Bb

Heterozygous refers to an organism that has inherited two different alleles (versions) of a particular gene from its parents. In other words, one allele is dominant and the other is recessive. For example, if an individual inherits a dominant allele for brown eyes from one parent and a recessive allele for blue eyes from the other, the individual is said to be heterozygous for eye color. The dominant allele is expressed in the phenotype (observable traits), making the individual’s eyes brown, while the recessive allele is not expressed. The term “heterozygous” is usually contrasted with “homozygous,” which refers to an organism that has inherited two identical alleles for a specific gene.

More Answers:

The Significance of the Chromosomal Theory of Inheritance in Modern Genetics
Genotypes: The Genetic Makeup of Organisms Explained.
Homozygous Recessive: Genetic Conditions and Their Implications for Health.

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