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How is it possible for a trait to “skip generations” (i.e., one of your traits was...

How is it possible for a trait to “skip generations” (i.e., one of your traits was also in one of your grandparents or great grandparents but not in either of your parents) ? explain in detail
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Answer #1

Mostly the recessive traits can skip generations because they can hide out in a carrier behind a dominant trait.

The recessive traits need another carrier and a bit of luck to be seen.It.means that it takes few generations to make its presence known.

Recessive traits can skip generation because a dominant phenotype can be produced by either a homozygous domimant genotype or a heterozygous genotypes.

If the trait is dominant, one of the parent must have the trait.Dominant traits will not skip generations.

For example, red hair and blue eyes can both skip a generation because they are recessive.Cleft chin can skip generations because of incomplete dominance.

This trait can definitely be around and then disappear.It can disappear because of chance(genetic drift). Or it can be lost because the environment has changed so that it is now a disadvantage for human to have(natural selection).

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