Answer: Main Difference – Dominant vs Recessive Alleles
Explanation: Dominant and recessive alleles are two terms that are described in the Mendelian genetics. Alleles are variants of a gene that determines a character of an individual. For example, in sickle cell disease, there are two genes that determine whether red blood cells should be normal or sickle-shaped. These two genes are variants of the same gene. Mendel describes these two terms using the experiments done with garden pea. He observed there were two traits in garden peas, round shaped peas, and wrinkled peas. After crossing the plant with rounded peas and the plant with wrinkled peas, the resulting first generation only had rounded peas. Then he allowed self-pollination of first generation plants, and found out the round and wrinkle characters are in three to one ratio. Since the roundness of peas is the dominant character, which masks the wrinkle, he named the allele that determines roundness as dominant allele and the allele that is masked by the dominant allele as the recessive allele. Therefore, the main difference between dominant and recessive alleles is that dominant allele determines the dominant character whereas recessive allele determines the recessive character.
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