Chapter 27:
Human Genetics
Practice Test
1.
What is a condition that results from having an extra autosome?
a.
hemophilia
b.
Down syndrome
c.
pneumonia
d.
dyslexia
Hint
2.
What is a disorder in which a person's blood does not clot?
a.
dyslexia
b.
sickle-cell anemia
c.
pneumonia
d.
hemophilia
Hint
3.
If a person has type A blood, what genes might they have?
a.
AB
b.
AO
c.
BO
d.
OO
Hint
4.
What is a type of flower that exhibits incomplete dominance?
a.
four o'clocks
b.
snapdragons
c.
pea plants
d.
roses
Hint
5.
How many Y chromosomes are there in the body cells of a male?
a.
zero
b.
one
c.
two
d.
three
Hint
6.
What is a condition where red and green look like shades of grey?
a.
color blindness
b.
chloroplast
c.
color vision
d.
chromosome
Hint
7.
Which are the male sex chromosomes?
a.
AB
b.
B
c.
Y
d.
X
Hint
8.
How many genes control human blood type?
a.
one
b.
four
c.
two
d.
three
Hint
9.
What is a genetic disorder called "word blindness"?
a.
cystic fibrosis
b.
hemophilia
c.
color blindness
d.
dyslexia
Hint
10.
What process do doctors use to count the number of chromosomes in the body cells of a human fetus?
a.
amniocentesis
b.
genetic counseling
c.
hybridization
d.
fertilization
Hint
