Question

For each of the genetic results described below, provide the term for the inheritance pattern that is most likely the cause and provide an explanation for your choice. Choose from:

Complete Dominance, Incomplete Dominance, Codominance, Multiple Alleles, Lethal Genes

-Six of the gerbils in a litter have white spotted fur and 3 have solid coloured fur.

-40 plants have red flowers, 41 have white flowers, and 79 have pink flowers. The pink flowers are clearly a lighter version of the red flowers.

-A blended family has 11 children. The children are the products of two previous marriages. There are four different phenotypes in the children for the same characteristic.

-A brown coloured cow has had four calves with a white bull. All of the calves have roan coloured hair. (Roan colour occurs when cattle has both red and white hairs in relatively equal amounts.)

-A grey mare had five foals with a grey stallion. Both horses were heterozygous for grey hair. The foals were all grey except for one that was chestnut in colour.