If Natural Selection Is Real, Why Do Lethal Recessive Disorders

question 2

Multiple Choice

If natural selection is real, why do lethal recessive disorders still exist in populations?

• A) Recessive disorders most frequently do not manifest until later in life, after the individual has reproduced.
• B) Recessive alleles remain hidden in carriers who are not affected by the disorder.
• C) There may be an advantage to individuals who are heterozygous.
• D) Recessive disorders most frequently do not manifest until later in life, after the individual has reproduced; and recessive alleles remain hidden in carriers who are not affected by the disorder.
• E) Recessive alleles remain hidden in carriers who are not affected by the disorder; and there may be an advantage to individuals who are heterozygous.

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