In humans, having two eyebrows is a completely dominant trait. The recessive trait is
expressed as having a single connected eyebrow. If a two parents who are heterozygous for
the eyebrow trait had an offspring, what is the probability that their child would express the
dominant phenotype?

The baby would most likely carry that trait  

Explanation

The chances of the child to be similar in a way could happen or not. The probability rate wouldn't be close to either parent even thought most of the time the child takes after the mother.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation: