Which of the Following Statements Best Explains Why Dominant Alleles

question 55

Multiple Choice

Which of the following statements best explains why dominant alleles that cause lethal disorders are less common than recessive alleles that cause lethal disorders?

• A)Lethal disorders caused by dominant alleles are usually more severe than lethal disorders caused by recessive alleles.
• B)Unlike lethal disorders caused by recessive alleles,lethal disorders caused by dominant alleles usually cause the death of the embryo.
• C)The presence of a lethal dominant allele causes sterility.
• D)Most individuals carrying a lethal dominant allele have the disorder and die before they reproduce,whereas individuals carrying a lethal recessive allele are more likely to be healthy and reproduce.

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