This trait results from a mutation in the a-keratin gene, and this mutation causes the feathers to curl. If two frizzled condors happen to mate, rather than producing offspring with frizzled feathers, one observes that 25% of the condor chicks have normal (straight) feathers; 50% have frizzled (curly) feathers, and an unfortunate 25% have “over-frizzled” feathers, which are extremely brittle and resemble pipe cleaners. Birds having this “over-frizzle” trait have great difficulty flying. When a condor that is homozygous for the normal feather allele is mated with one of these “over-frizzled” birds, all of the chicks will have frizzled feathers. Please NAME and EXPLAIN the genetic phenomenon described
Another mutation has occurred in the Andean condor, which is further endangering the survival of the species: Frizzled feathers. This trait results from a mutation in the a-keratin gene, and this mutation causes the feathers to curl. If two frizzled condors happen to mate, rather than producing offspring with frizzled feathers, one observes that 25% of the condor chicks have normal (straight) feathers; 50% have frizzled (curly) feathers, and an unfortunate 25% have “over-frizzled” feathers, which are extremely brittle and resemble pipe cleaners. Birds having this “over-frizzle” trait have great difficulty flying. When a condor that is homozygous for the normal feather allele is mated with one of these “over-frizzled” birds, all of the chicks will have frizzled feathers. Please NAME and EXPLAIN the genetic phenomenon described here.
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