Humans Homozygous for the Sickle Cell Allele Have Sickle Cell

question 44

Multiple Choice

Humans homozygous for the sickle cell allele have sickle cell anemia. A human that is heterozygous for the sickle cell allele is an example of ________.

• A) codominance
• B) incomplete penetrance
• C) heterozygous advantage
• D) multiple allele systems