Homozygotes with the genotype HbS/HbS have
a. sickle cell anemia.
b. malaria.
c. blood type SS.
d. Fanconi's anemia.
e. sickle cell trait.
A
You might also like to view...
Which of the following regarding antigens is true?
A. A large antigen is likely to have many different epitopes, each of which can stimulate a distinct immune response. B. An antigen is a molecule which promotes a general immune response. C. Bacteria do not contain antigens. D. Antigens can only be recognized by their lipid moieties. E. The most effective antigens are small simple amino acid complexes.
Which three things do all living cells have in common?
a. a nucleus, cytoplasm, and a cell wall b. cytoplasm, a cell wall, and lysosomes c. a nucleus, ribosomes, and a cell membrane d. DNA, a cell membrane, and a nucleus e. a plasma membrane, DNA, and cytoplasm
Which macronutrient is the major source of energy for cell processes?
A) carbohydrates B) proteins C) fats D) water
A modification of a gene or chromosome that occurs during gamete formation or early development that permanently alters the expression of that gene for the lifetime of the individual is called
A. maternal effect. B. epigenetic inheritance. C. sex-linked inheritance. D. extranuclear inheritance. E. epistasis.