Unit Test — Unit test Answers

Danielle has blonde hair. Her mother has blonde hair and her father has brown hair.Which explains how Danielle inherited her hair color?

Some illnesses and harmful infections are caused by bacteria. These bacteria grow in the human body and often make people sick with symptoms like coughing, sneezing, and fever. These illnesses are not related to any genetic mutations or other problems with DNA.

A cleft chin is a dominant trait. One parent is heterozygous for cleft chin, and the other parent does not have a cleft chin.

A scientist has a tomato plant with red-skinned tomatoes. It has one allele for red skin (R) and one for yellow skin (r).Which describes the phenotype of the tomato plant?

Sherry draws a diagram to compare selective breeding and genetic engineering.

Which is the best example of a neutral mutation?

cell nucleusribosomeamino acidprotein

The Punnett square shows the results when two parent dogs are crossed. L represents the allele for a long tail, and l represents the allele for a short tail.

One coiled spring is shown in the diagram.

Xavier used a chart to list the roles of two different molecules in protein production. Which headings best complete the chart?

Brown eye color is a dominant trait and blue eye color is a recessive trait.What typically happens when someone inherits one allele for brown eyes and one for blue eyes?

Which fraction represents 25% of the offspring in a genetic cross?

Having freckles is dominant over not having freckles, and curly hair is dominant over straight hair. One parent is homozygous for freckles and has straight hair. The other parent does not have freckles and has straight hair.