If a human who is a tongue roller (T) and has unattached ear lobes (E) marries a person who cannot roll their tongue and has attached earlobes, could they produce an offspring that was also a non-tongue roller with attached earlobes? What would be the genotype of the first parent? the second parent?
A) yes; TtEe; ttee
B) yes; TtEE; ttEe
C) no; TTEE; ttee
D) unable to determine from the information given

Question

Quizplus · Accepted Answer

Since the first parent is a tongue roller (T) and has unattached earlobes (E), their genotype would be TtEe. The second parent cannot roll their tongue (t) and has attached earlobes (ee), so their genotype would be ttee. When the two parents reproduce, their offspring could inherit two recessive alleles for tongue rolling (tt) and two recessive alleles for attached earlobes (ee), resulting in a non-tongue roller with attached earlobes. Therefore, option A is correct.

If a Human Who Is a Tongue Roller (T) and Has