Multiple Choice
The X and Y sex chromosomes are the best examples of homologous chromosomes.
29. Heredity
Patterns of Inheritance
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A person who inherits the A and the O blood type alleles will possess which blood type?
A
O
B
The blood type cannot be determined from the given information.
C
B
D
AB
E
A
Verified step by step guidance1
Understand that human blood type is determined by the ABO blood group system, which involves three alleles: A, B, and O.
Recognize that the A and B alleles are dominant, while the O allele is recessive.
Consider the inheritance pattern: if a person inherits an A allele and an O allele, the A allele will be expressed because it is dominant over the O allele.
Determine that the presence of the A allele results in the expression of blood type A, as the O allele does not affect the phenotype when paired with a dominant allele.
Conclude that a person with one A allele and one O allele will have blood type A.
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