Topics: Genetics and Probability Quiz
What did Gregor Mendel use to study heredity?
A. Bacteria
B. Pea plants
C. Mice
D. Fruit flies
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Which of the following best describes a heterozygous genotype?
A. Two identical alleles for a trait
B. Two different alleles for a trait
C. An organism without alleles
D. Two dominant alleles for a trait