Chapter 26:
Inheritance of Traits
Practice Test
1.
Eye color, hair color, and the shape of your ears are examples of what?
a.
grafting
b.
hormones
c.
chromosomes
d.
traits
Hint
2.
An individual who has two dominant genes for the same trait is said to be __________.
a.
heterozygous
b.
pure recessive
c.
recessive
d.
pure dominant
Hint
3.
Mendel explained dominant and recessive _________.
a.
genes
b.
DNA
c.
chromosomes
d.
traits
Hint
4.
If Mendel bred a short (pure recessive) pea plant to a tall (heterozygous) pea plant, which of the following COULD NOT result in the immediate offspring?
a.
short (pure recessive) plants
b.
tall (heterozygous) plants
c.
tall plants with yellow peas
d.
tall (pure dominant) plants
Hint
5.
When Mendel bred a short (pure recessive) pea plant to a tall (pure dominant) pea plant, what was the immediate offspring?
a.
some tall and some short plants
b.
tall (pure dominant) plants
c.
tall (heterozygous) plants
d.
short (pure recessive) plants
Hint
6.
Chromosomes are found where in a cell?
a.
in the chloroplast
b.
in the mitochondria
c.
in the vacuole
d.
in the nucleus
Hint
7.
What is a small section of a chromosome that determines a specific trait of an organism?
a.
cell
b.
sperm
c.
egg
d.
gene
Hint
8.
What is the study of how traits are passed from parents to offspring?
a.
genetics
b.
biology
c.
reproduction
d.
ecology
Hint
9.
A set of parents is heterozygous for free or attached earlobes, and attached earlobes are a recessive trait. If they have four children, it is most probable that how many of their children will have free earlobes?
a.
two
b.
four
c.
three
d.
one
Hint
10.
What type of situation occurs when an individual has one dominant gene and one recessive gene for a particular trait?
a.
heterozygous
b.
pure recessive
c.
pure dominant
d.
recessive
Hint
