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A freckled man marries a woman without freckles. They have four children, two with freckles, and two without freckles. What are the genotypes of all these people?

Sagot :

Homadison4idn

Answer:

The genotype of the father: Ff

The genotype of the mother: ff

The genotype of the two children without freckles: ff

The genotype of the two children with freckles: Ff

Explanation:

Freckles (F) are is dominant trait, so one dominant allele in the genotype of an individual will cause he/she to have freckles.  Since the father has freckles, but only two of his children has freckles; that means that he has a heterozygous genotype.  In the Punnett Square, the offsprings' genotypes are shown, as well as the parents'.

View image Homadison4
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