The 7 characters studied by Mendel are examples of single gene traits. They are called this because:

A: there is only a single genotype for all individuals.
B: distinct phenotypes are produced by variant alleles of a single gene.
C: there always is 1 dominant allele and 1 recessive allele for a given character.
D: all of the above


Answer: B: distinct phenotypes are produced by variant alleles of a single gene.

Biology & Microbiology

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