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Mendel's First Law (the Law of Segregation) states that
Question  options:

1)

genes are carried in pairs and separate during meiosis to be distributed into different sex cells.

2)

the probability of two or more independent events occurring together is the product of the individual probabilities.

3)

the dominant form of a trait will appear in every generation.

4)

members of different pairs of genes behave independently during meiosis.


If the P1 are SS and ss, then the F2 will be
Question  options:

1)

1/2 Ss and 1/2 SS

2)

all Ss

3)

1/4 SS, 1/2 Ss, and 1/4 ss

4)

1/2 ss and 1/2 Ss



Black hair (B) is dominant to white hair (b), and straight hair (S) is dominant to curly hair (s). Each pair of alleles sorts independently. For a BbSs x BbSs cross, the phenotypic ratio of the offspring is
Question options:

1)

9:3:3:1

2)

1:1:1:1

3)

1:1:12:2:4

4)

1:2:1



The following diagram is a pedigree of myopia(nearsightedness). Use the pedigree to answer the following questions (see diagram below)

What is the genotype of Individual 4?

Question options:

1)

heterozygous

2)

insufficient data to determine the condition

3)

homozygous


What is the genotype of Individual 7?
Question options:

1)

insufficient data to determine the condition

2)

heterozygous

3)

homozygous


An important factor in the development of the chromosomal theory of inheritance was the discovery that
Question options:

1)

Mendel's "heritable factors," or genes, behave in a way similar to chromosomes.

2)

specific traits in fruit flies are associated with chromosomes that determine their sex.

3)

female somatic cells contain Barr bodies.

4)

DNA influences hereditary characteristics.
(end of diagram question)


Which P1 genotypes could possibly have all four blood groups expressed in the offspring?
Question  options:

1)

IBIO and IOIO (IAi and ii)

2)

IAIO and IBIB(IAi and IBIB)

3)

IAIO and IBIO (IAi and IBi)

4)

IAIA and IAIO(IAIA and IAi)


Use the "A-B-0" method of blood typing in humans to answer the following question(s).

A man with blood type AB married a woman with blood type A who carried a gene for type O. What are the possible blood types of their children?
Question options:

1)

type A and type B only

2)

type A, type B and type AB

3)

type A and type AB only

4)

type B and type AB only



Red-green color blindness in humans is inherited as an X-linked recessive trait. If a man who is red-green color blind is married to a woman heterozygous for normal color vision, what proportion of their offspring is expected to be red-green color blind?
Question options:

1)

two out of four

2)

three out of four

3)

one out of four

4)

all of the offspring


Use this information to answer the following question(s).

Three babies were mixed up when hospital aides gave them to the wrong parents. To correct the situation and return the offspring to their rightful parents, the blood types of both parents and babies were taken. The results are recorded below.

Parents   Blood Type       Baby   Blood Type
I   A and B      1   B
II   B and O      2   A
III   AB and B      3   AB
Baby 2 later married Baby 3. What is the possibility that their first child will have type A blood?

Question options:

1)

25%

2)

50%

3)

75%

4)

0%

Thank you!

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