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WorksheetsComplex Inheritance
Total questions: 55
Worksheet time: 45mins
Name
Class
Date
1.
What do you call the non-Mendelian inheritance pattern that states that neither trait is dominant and the traits appear to blend together?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
2.
What do you call the non-Mendelian inheritance pattern that states that both traits are dominant and both appear in the organism and neither trait is masked?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
3.
What type of inheritance is determined by multiple genes located at different loci on different chromosomes and there can be a range of traits?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
4.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
5.
How many people in the pedigree are carriers for the disorder?
a)
6
b)
8
c)
2
d)
9
6.
An example of polygenic inheritance is...
a)
Skin Color
b)
hitch hikers thumb
c)
blood types
7.
Incomplete dominance means that there traits are
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
8.
Blood types consist of 4 different alleles.
a)
false
b)
true
9.
How many alleles does someone have for a genotype?
a)
1
b)
2
c)
3
d)
4
10.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
11.
Looking at this pedigree, how many family members have the disease?
a)
4
b)
7
c)
All
d)
None
12.
In the second generation-how many people have the disease or display the physical trait?
a)
2
b)
4
c)
5
d)
6
13.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
14.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
15.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Codominance
c)
Independent assortment
d)
Recessive inheritance
16.
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:
a)
all black
b)
all white
c)
all gray
d)
speckled black and white
17.
A red eye dragon mates with a yellow eye dragon. Their offspring has yellow eyes.
a)
complete dominance
b)
incomplete dominance
c)
codominance
18.
A pink poodle mates with a purple poodle. The offspring is pink and purple plaid.
a)
complete dominance
b)
incomplete dominance
c)
codominance
19.
Nondisjunction is related to a number of serious human disorders. How does nondisjunction cause these disorders?
a)
alters the number of zygotes
b)
alters the chromosome structure
c)
alters the number of gametes
d)
alters the number of chromosomes
20.
A phenotype that results from a dominant allele must have at least ___ dominant allele(s) present in the parent(s)
a)
1
b)
2
c)
3
d)
4
21.
Which term(s) best describes the inheritance of human blood types?
a)
incomplete dominance and multiple alleles
b)
codominance and epistasis
c)
codominance and multiple alleles
d)
incomplete dominance and codominance
22.
What determines gender in humans?
a)
the X and Y chromosome
b)
chromosome 21
c)
codominance
d)
epistasis
23.
Which condition is inherited as a dominant allele?
a)
cystic fibrosis
b)
albinism
c)
Huntington's disease
d)
Tay-Sacs disease
24.
How many chromosomes does a "normal" individual have?
a)
23
b)
40
c)
46
d)
52
25.
What type of chromosomal abnormality do people with Down Syndrome have?
a)
trisomy 21
b)
monosomy 21
c)
recessive inheritance
d)
dominant inheritance
26.
A man with type O blood is accused of being the father of a type B baby. The mother is type A. Could this man be the father?
a)
Yes
b)
No
27.
Which of the following disorders can be observed in a human karyotype?
a)
colorblindness
b)
Trisomy 21
c)
cystic fibrosis
d)
sickle cell disease
28.
Which of the following disorders is a direct result of nondisjunction?
a)
Turner's Syndrome
b)
sickle cell disease
c)
Huntington's disease
d)
Cystic fibrosis
29.
The genetic advantage to being a carrier for sickle cell anemia is that it helps prevent malaria.
a)
True
b)
False
30.
Disorder when blood cells are misshapen, resulting in a decrease of oxygen and caused by a defective allele for a polypeptide in hemoglobin
a)
Duschenne's muscular dystrophy
b)
Turner's Syndrome
c)
sickle cell anemia
d)
Down Syndrome
31.
A genetic pedigree showing that only males are affected by a certain disorder is evidence of a sex-linked trait.
a)
True
b)
False
32.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
33.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
34.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
35.
What do half colored symbols represent?
a)
The individual is a carrier.
b)
The individual expresses the trait.
c)
The individual has both recessive alleles.
d)
The individual has both dominant alleles.
36.
What does a horizontal line between a square and a circle mean?
a)
They are siblings
b)
They are cousins
c)
They are married ("together")
d)
They are the children
37.
What type of heredity is shown in the pedigree?
a)
Sex-Linked Dominant
b)
Sex-Linked Recessive
c)
Autosomal Dominant
d)
Autosomal Recessive
38.
What type of heredity is shown in the pedigree?
a)
Sex-Linked Dominant
b)
Sex-Linked Recessive
c)
Autosomal Dominant
d)
Autosomal Recessive
39.
What type of heredity is shown in the pedigree?
a)
Sex-Linked Dominant
b)
Sex-Linked Recessive
c)
Autosomal Dominant
d)
Autosomal Recessive
40.
What type of heredity is shown in the pedigree?
a)
Sex-Linked Dominant
b)
Sex-Linked Recessive
c)
Autosomal Dominant
d)
Autosomal Recessive
41.
What type of heredity is shown in the pedigree?
a)
Sex-Linked Dominant
b)
Sex-Linked Recessive
c)
Autosomal Dominant
d)
Autosomal Recessive
42.
A picture of a person’s chromosomes in order is called:
a)
Pedigree
b)
Punnett Square
c)
Karyotype
43.
A woman with Huntington's Disease will have children who have a 50% chance to be affected by the trait.
a)
True
b)
False
44.
Chromosomes that do not control the sex of the offspring are called
a)
sex chromosomes
b)
somatic chromosomes
c)
autosomal chromosomal
45.
Can parents of normal height have children that have achondroplasia? Know how to explain your answer.
a)
Yes
b)
No
46.
Nondisjunction occurs only during Meiosis I.
a)
True
b)
False
47.
The inheritance pattern of hemophilia is
a)
autosomal dominant
b)
autosomal recessive
c)
sex-linked dominant
d)
sex-linked recessive
48.
What blood type would an individual have if this was one of the cells seen under a microscope?
a)
Type A
b)
Type B
c)
Type AB
d)
Type O
49.
A man with a certain genetic disorder marries a woman who is normal for the trait. They have several children. All of the girls have the same syndrome as the father, boys are not affected. What inheritance could this not be?
a)
X-Linked recessive
b)
X-Linked Dominant
c)
Autosomal recessive
d)
Y Linked
50.
What do Tay Sachs and PKU have in common?
a)
Both are conditions where the genotype is the same as how the person looks
b)
Both have respiratory failure
c)
Both are caused by a lack of enzyme production
d)
Neither show outward physical symptoms
51.
Karyotypes display a set of chromosomes in _____________ number order.
a)
decreasing
b)
increasing
52.
A normal human karyotype displays _________________ pairs of autosomes.
a)
22
b)
23
c)
44
d)
46
53.
a recessive genetic disorder that affects chloride ion uptake in cells causing excess mucus production is
a)
Tay Sachs
b)
Cystic Fibrosis
c)
PKU
d)
Albinism
54.
An individual with two normal sets of autosomes and a single X chromosome has
a)
Patau Syndrome
b)
Turner Syndrome
c)
Klinefelter Syndrome
d)
Down Syndrome
55.
How many chromosomes does a person have with Edward Syndrome?
a)
45
b)
46
c)
47
d)
48
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