Question

A student inherited left handedness from parents who are both right handed. Explain the pattern of inheritance

Answer 1

Answer:

the left handedness was a recessive trait and skipped one or maybe multiple generations

Explanation:

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Answer 2

For a student to have inherited left handedness from parents who are both right handed, it means that the left-handed trait is recessive in both parents.

The pattern of inheritance of handedness can, thus, said to be simple dominant/recessive with the right handedness trait being dominant while the left handedness is recessive.

Let us assume that right-handedness is represented by the allele A and left-handedness by the allele a.

The two parents are heterozygous, hence, their genotypes each would be Aa.

                Aa   x   Aa

            AA   Aa   Aa   aa

From the cross, 3/4 of their children would be right handed (AA or Aa) while 1/4 would be left handed (aa). The student in question must have been from the 1/4.

More about dominant/recessive traits can be found here: brainly.com/question/20744588