6
QuizMultiple Choice

Introduction to Heredity

Question 6 • WI-Grade 8 Life Science A

A bean plant is heterozygous for seed shape. Its seeds are smooth.Which conclusion is best supported by the information?

Answer
A
Having smooth seeds is a recessive trait.
B
Having smooth seeds is a dominant trait.
C
Both parents had a recessive allele for seed shape.
D
Neither parent had a recessive allele for seed shape.

Explanation

A heterozygous plant has two different alleles for seed shape. Since its seeds are smooth, the smooth allele must show its effect when paired with a different allele; therefore, smooth seed shape is dominant. The information does not reveal which alleles the plant’s parents carried.

AI-written and checked against the verified answer.

Previous
Next