NEW
Font size
S
M
L
XL
WorksheetsBiology, Chapter 7, Extending Mendel, Review
Total questions: 30
Worksheet time: 22mins
Name
Class
Date
1.
How many PAIRS of chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
2.
How many PAIRS of sex chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
3.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
4.
The phenotype is the _______________.
a)
physical appearance of an organism
b)
Genetic makeup
c)
Alleles acquired from a specific parent.
5.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
6.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
7.
In which inheritance pattern are heterozygous individuals a blend of the dominant and recessive phenotypes?
a)
sex-linked inheritance
b)
complete dominance
c)
codominance
d)
incomplete dominance
8.
The X and Y chromosomes are called the
a)
extra chromosomes.
b)
phenotypes.
c)
sex chromosomes.
d)
All of the answers are correct.
9.
female : XX ::
a)
female : gametes
b)
female : eggs
c)
male : YY
d)
male : XY
10.
A diagram in which several generations of a family and the occurrence of certain genetic characteristics are shown is called a
a)
Punnett square.
b)
monohybrid cross.
c)
pedigree.
d)
family karyotype.
11.
Which of the following traits is controlled by multiple alleles in humans?
a)
sickle cell anemia
b)
blood type
c)
hemophilia
d)
pattern baldness
12.
What would be the blood type of a person who inherited an A allele from one parent and an O allele from the other?
a)
type A
b)
type B
c)
type AB
d)
type O
13.
If a characteristic is sex-linked, it
a)
occurs most commonly in males.
b)
occurs only in females.
c)
can never occur in females.
d)
is always fatal.
14.
Since the allele for colorblindness is located on the X chromosome, colorblindness
a)
cannot be inherited.
b)
occurs only in adults.
c)
is sex-linked.
d)
None of the answers are correct.
15.
People with Down syndrome have
a)
45 chromosomes.
b)
46 chromosomes.
c)
47 chromosomes.
d)
no X chromosomes.
16.
The sex of an offspring is determined by
a)
the mother.
b)
the father.
c)
both parents.
d)
the offspring.
17.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
18.
If a woman is a carrier for a sex linked recessive trait of hemophilia and her husband has hemophilia, which of the following is true? Make a punnett square!
a)
All sons will have hemophilia
b)
all daughters will have hemophilia
c)
50% of daughters and 50% of sons have hemophilia
d)
100% of sons have hemophilia and 100% of daughters are carriers
19.
What type of inheritance do two alleles have if their traits blend together?
a)
Incomplete Dominance
b)
Co-Dominance
c)
Mendelian Inheritance
d)
Homozygous Inheritance
20.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
c)
Independent assortment
d)
Recessive inheritance
21.
Which of the following is a hybrid?
a)
BB
b)
bb
c)
Bb
22.
What did Gregor Mendel's primary experiment consist of?
a)
Peas
b)
Flowers
c)
Beans
23.
When different traits are crossed and both are expressed in an organism
a)
Co-Dominance
b)
Gene expression
c)
Intermediate Inheritance
d)
Incomplete Dominance
24.
When two or more alleles for a trait exist in a population. Ex: Different hair colors
a)
Polyploidy
b)
Multiple Genes
c)
Multiple Alleles
d)
Polysaccharide
25.
When two or more genes control one single trait.
a)
Multiple Alleles
b)
Several Genes
c)
Polygenetic Traits
d)
Genotype
26.
The combination of alleles (letters) that is used to describe dominant and recessive alleles. (ABC's)
a)
Phenotype
b)
Genotype
c)
Alleles
d)
Punnet Square
27.
Homozygous Dominant
a)
Gg
b)
ff
c)
DD
d)
Hh
28.
Heterozygous
a)
Jj
b)
HH
c)
KK
d)
rr
29.
The study of heredity
a)
Heredology
b)
Science
c)
Genetics
d)
DNA
30.
Who is the father of genetics?
a)
Thomas Morgan
b)
Pena Nieto
c)
Gregor Mendel
d)
Donald Trump
Reset
