Question

A and S are two alleles of the ?-globin gene, as shown in the graph below. Phenotypes at Different Levels of Analysis Normal AA Carrier AS Diseased SS ?-globin polypeptide production IV Red blood cell shape at sea level Normal Normal Sickled cells present III Red blood cell concentration at sea level Normal Normal Lower Red blood cell shape at high altitudes Normal Sickled cells present Severe sickling Red blood cell concentration at high altitudes Normal Lower Very low, anemia I Susceptibility to malaria Normal susceptibility Resistant Resistant II Match the dominance relations of allele A and S at each level of analysis. (Select I,II, III or IV) *Note: I refers only to the "Red blood cell concentration at high altitude" phenotype and not the "Red blood cell shape at high altitude" phenotype. S is dominant, A is recessive A is dominant, S is recessive A and S are codominant A and S show incomplete dominance Submit Answer Tries 0/99

          A and S are two alleles of the ?-globin gene, as shown in the graph below.

Phenotypes at Different Levels of Analysis
Normal AA
Carrier AS
Diseased SS
?-globin polypeptide production IV
Red blood cell shape at sea level Normal Normal Sickled cells present III
Red blood cell concentration at sea level Normal Normal Lower
Red blood cell shape at high altitudes Normal Sickled cells present Severe sickling
Red blood cell concentration at high altitudes Normal Lower Very low, anemia I
Susceptibility to malaria Normal susceptibility Resistant Resistant II

Match the dominance relations of allele A and S at each level of analysis. (Select I,II, III or IV)
*Note: I refers only to the "Red blood cell concentration at high altitude" phenotype and not the "Red blood cell shape at high altitude" phenotype.

S is dominant, A is recessive
A is dominant, S is recessive
A and S are codominant
A and S show incomplete dominance
Submit Answer Tries 0/99

A and S are two alleles of the ?-globin gene, as shown in the graph below.

Phenotypes at Different Levels of Analysis
Normal AA
Carrier AS
Diseased SS
?-globin polypeptide production IV
Red blood cell shape at sea level Normal Normal Sickled cells present III
Red blood cell concentration at sea level Normal Normal Lower
Red blood cell shape at high altitudes Normal Sickled cells present Severe sickling
Red blood cell concentration at high altitudes Normal Lower Very low, anemia I
Susceptibility to malaria Normal susceptibility Resistant Resistant II

Match the dominance relations of allele A and S at each level of analysis. (Select I,II, III or IV)
*Note: I refers only to the "Red blood cell concentration at high altitude" phenotype and not the "Red blood cell shape at high altitude" phenotype.

S is dominant, A is recessive
A is dominant, S is recessive
A and S are codominant
A and S show incomplete dominance
Submit Answer Tries 0/99

Added by Montserrat C.

Question

Please give Ace some feedback