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Which of the following is always true of a mutation that produces a dominant allele? A - HSC - SSCE Biology - Question 11 - 2019 - Paper 1
Question 11
Which of the following is always true of a mutation that produces a dominant allele? A. It will be lethal in a population. B. It will be expressed in heterozygous ... show full transcript
Worked Solution & Example Answer:Which of the following is always true of a mutation that produces a dominant allele? A - HSC - SSCE Biology - Question 11 - 2019 - Paper 1
Step 1
B. It will be expressed in heterozygous individuals.
Answer
A dominant allele is characterized by its ability to express itself in both homozygous (AA) and heterozygous (Aa) individuals. This means that as long as at least one dominant allele is present, the phenotype associated with the dominant allele will be expressed. Therefore, option B is the most accurate choice.