Heredity Test Practice Questions With Answer Key

ADVERTISEMENT

Name: __________________________
HEREDITY TEST PRACTICE QUESTIONS
Core: ______
1. In pea plants, the allele for tallness (T) is
4. The pedigree below shows the inheritance of
dominant to the allele for shortness (t). In the cross
sickle-cell anemia, a genetic disease, in a particular
between a tall pea plant and a short pea plant shown
family. The shaded symbols represent individuals
below, what is the probability that the resulting
with sickle-cell anemia.
offspring will be tall?
T t
t ? ?
t ? ?
A. 50%
B. 25%
According to the pedigree, how many daughters do
C. 100%
the parents in generation I have?
D. 75%
A. 2
B. 3
C. 7
2. A rabbit is carrying a dominant allele for brown
D. 4
hair (B) and a recessive allele for white hair (b).
What is the rabbit's phenotype?
5. Albinism (a) is a recessive trait that causes the
A. brown hair
complete or partial absence of pigment in the skin,
B. BB
hair, and eyes.
C. white hair
D. Bb
If two heterozygous rats (Aa) mate with each other,
what is the probability that one of their offspring
will be homozygous (AA) and not albino?
3. Examine the pedigree below.
A
a
A
??
??
a
??
??
If night blindness is a recessive trait, what should
the phenotype of the couple's fourth child be?
The child will develop night blindness later in
A. 25%
A.
life.
B. 0%
B. The child will be night blind.
C. 100%
C. The child will have normal vision.
D. 50%
The child could be night blind or have normal
D.
vision.

ADVERTISEMENT

00 votes

Related Articles

Related forms

Related Categories

Parent category: Education
Go
Page of 5