Question

There are six people in the Fisher family. Olivia and Marcus are the parents. Neither Olivia nor Marcus have freckles, a dominant trait. They have four children: Violet, Nathan, Jonas, and Claudia. What is the probability that each child has of inheriting freckles?

Answer 1

As neither Olivia nor Marcus have the freckles dominant trait, they are both ff, thus their offsprings are Olivia ff × Marcus ff = Of1Of2 × Mf1Mf2 = Of1Mf1, Of1Mf2, Of2Mf1, and Of2Mf2 = ff, ff, ff, and ff which means Violet, Nathan, Jonas and Claudia did not inherit freckles from their parents or the probability that each child has of inheriting freckles P(Ff), P(FF) from their parents = 0

Explanation:

There is a pair of each gene in the chromosome. The chromosomes contains the genetic code. Each of these gene are known as an allele. There are two forms of Alleles viz, a dominant and a recessive allele.

The dominant allele expresses itself an offspring by showing its characteristics even when the chromosomes contains one dominant and one recessive allele of a gene, while the recessive gene requires both genes to be recessive for it to express itself