Multiple Alleles MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
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EASYMultiple alleles are present:
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Multiple Alleles
- Mendel implied that only two alleles, one dominant and one recessive, could exist for a given gene. We now know that this is an oversimplification.
- Although individual humans (and all diploid organisms) can only have two alleles for a given gene, multiple alleles may exist at the population level.
- Therefore, many combinations of two alleles are observed.
- The example of ABO blood grouping also provides a good example of multiple alleles.
- Another example of multiple alleles is coat color in rabbits.
- Here, four alleles exist for the c gene.
- The wild-type version, C+C+, is expressed as brown fur. The chinchilla phenotype, cchcch, is expressed as black-tipped white fur. The Himalayan phenotype, chch, has black fur on the extremities and white fur elsewhere. Finally, the albino, or “colorless” phenotype, cc, is expressed as white fur.
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