Both Bonnie and Brendan spend a lot of time in the sun. Bonnie has freckles but her brother Brendan doesn't have freckles. You can safely assume that:
A)Bonnie and Brendan have the same genotype, even though their phenotypes differ.
B)Bonnie and Brendan have inherited different alleles for the trait of freckles.
C)Bonnie and Brendan have the same phenotypes even though their genotypes differ.
D)Bonnie inherited two recessive "no freckle" alleles, and Brendan inherited one dominant allele of the freckle gene.

Question

Quizplus · Accepted Answer

Since Bonnie has freckles and Brendan doesn't, it's likely that they inherited different alleles for the trait of freckles. The presence or absence of freckles is a visible phenotype, but genotypes can vary even if phenotypes remain the same.

Both Bonnie and Brendan Spend a Lot of Time in the Sun