Pre Post Test
SC.912.L.16.1: Use Mendel’s laws of segregation and independent assortment to analyze
patterns of inheritance.
SC.912.L.16.2: Discuss observed inheritance patterns caused by various modes of inheritance,
including dominant, recessive, codominant, sex-linked, polygenic, and multiple alleles.
1. Alleles for A and B blood cell antigens are codominant. The condition where no antigens are
present on the blood cells (type O blood) is a recessive trait. Which set of parents would most
likely produce a child with type O blood?
A. one parent has type AB blood and the other has type A blood
B. one parent has type AB blood and the other has type O blood
C. one parent has a heterozygous type A blood and the other has type O blood
D. one parent has a homozygous type A blood and the other has a homozygous type B
blood
2. If a man has type O blood, his red blood cells have ___________.
A. neither A nor B antigens
B. A antigens only
C. B antigens only
D. Both A and B antigens
3. Which blood type would be possible in a child whose parents are both type O?
A. Type O
B. Type A
C. Type B
D. Type AB
4. When a trait is carried on the X or Y chromosome, it is called a _______ trait.
A. polygenic
B. sex-linked
C. codominant
D. heterozygous
5. A ________ is a diagram that traces the inheritance of a particular trait through several generations.
A. Punnett Square
B. karyotype
C. pedigree
D. genotype
6. An organism’s phenotype is usually a combination of its genotype and its _________.
A. age
B. gender
C. wealth
D. environment
7. Mendel’s ______________ states that allele pairs separate independently during the formation of
gametes.
A. Law of Independent Assortment
B. Law of Dominance
C. Law of Segregation
D. Law of basic inheritance
8. Which of the following is a possible genotype for an individual who has the phenotype of type A
blood?
A. OO
B. BO
C. AO
D. BB
9. Blood type O is sometimes called the Universal _________.
A. Donor
B. Acceptor
C. Filter
D. Defender