NEET BIOLOGY

Detailed explanation-1: -Freckles, cleft chin and dimples are all examples of a dominant trait. Having almond-shaped eyes is a dominant trait whereas having round eyes is a feature controlled by recessive alleles. The trait of detached earlobes, as opposed to attached earlobes, is dominant. Right-handedness is dominant over left-handedness.

Detailed explanation-2: -Rare Dominant Genes The polydactyly trait–having extra fingers or toes–is one example of a rare inherited dominant gene trait. If you look around at all the people you know, you may notice right away that a majority of the people you see have five fingers and toes.

Detailed explanation-3: -Dominant traits are not always the most common. Some people may think that dominant trait is the most likely to be found in the population, but the term “dominant” only refers to the fact that the allele is expressed over another allele. An example of this is Huntington’s disease.

Detailed explanation-4: -Dominant alleles are not better than recessive alleles Mode of inheritance has nothing to do with whether an allele benefits an individual or not. Take rock pocket mice, where fur color is controlled mainly by a single gene. The gene codes for a protein that makes dark pigment.