Which is likely the result of a mutation? (select all that apply)(2 points)

Question

Responses

ALL Swans are white. One day a black swan is born
ALL Swans are white. One day a black swan is born

You used to be able to digest milk, but as you have gotten older it just doesn't digest as well
You used to be able to digest milk, but as you have gotten older it just doesn't digest as well

a child lacks the protein that helps him digest the amino acid phenylalanine
a child lacks the protein that helps him digest the amino acid phenylalanine

a rabbit's coat turns from brown to white in the winter and then back to brown in the summer.

Answer 1

The responses likely to be the result of a mutation are:

1. ALL Swans are white. One day a black swan is born. - This is indicative of a genetic mutation that results in a different coloration compared to the norm for the species.

2. A child lacks the protein that helps him digest the amino acid phenylalanine. - This condition, phenylketonuria (PKU), is caused by a mutation in the gene responsible for producing the enzyme needed to process phenylalanine.

The other two scenarios — changes in digesting milk as one gets older and a rabbit's coat color changing with the seasons — are generally not results of mutations but rather are common biological variations or adaptations rather than genetic mutations.