For a simple dominant/recessive trait, do the offspring of parents with identical traits (that are visible) always look like or have the same visible traits, as the parents? Explain WHY they DO or WHY they DO NOT.

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Biology

Mylee Avila

17 September, 14:55

For a simple dominant/recessive trait, do the offspring of parents with identical traits (that are visible) always look like or have the same visible traits, as the parents? Explain WHY they DO or WHY they DO NOT.

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Oprah · Answer 1

No they do not since whilst the parents may exhibit a certain trait this does not mean that they are necessarily homozygous for that trait, and thus if for example we had two heterozygous individuals who had brown eyes, with B denoting brown eyes as the dominant trait and b denoting blue eyes as the recessive trait, their offSpring could have the genotypes BB, Bb or bb - we can see here that whilst the chance of having brown eyes is higher, the offspring may have either brown or blue eyes.