# Question: please show formula and answer very clearlyandnbspin mendelian genetics problems...

###### Question details

Please show formula and answer very clearly;

In Mendelian genetics problems, you are working with probabilities which are often expressed as fractions. For example; A couple are both heterozygous for freckles (a dominant trait). What is the probability that they have three children without freckles? Express your answer as a fraction.