The Power of Homozygous Dominant Genotype: Understanding the Role of Dominant Alleles in Genetics.

Homozygous Dominant

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Homozygous dominant refers to a specific genotype in which an individual carries two identical copies of a dominant allele for a particular trait. A dominant allele is a genetic variant that will always exhibit its phenotype, or physical expression, even when the individual carries only one copy of the allele. In homozygous dominant individuals, both copies of the gene are the same and both carry the dominant allele.

For example, let us consider a trait of flower color in a plant where white flowers are recessive and red flowers are dominant. An individual with a homozygous dominant genotype for flower color would have two identical copies of the dominant allele “R,” resulting in red flowers. This means that the individual inherited the “R” allele from both parents.

In a Punnett square, the genotype of a homozygous dominant individual is often represented by two capital letters (RR) to indicate that both alleles are dominant. Homozygous dominant individuals are important in genetics because they will always pass on the dominant allele to their offspring, making it more likely that their offspring will express the dominant phenotype.

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