WorksheetsHeredity
Total questions: 50
Worksheet time: 12hrs 16mins
Name
Class
Date
1.
___________________________ is the study of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
2.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
3.
You get your genes from:
a)
Department Store
b)
Parents
c)
Aunt
d)
Neighbor
4.
Why did Mendel choose to study pea plants in order to learn how traits are passed from parent to offspring?
a)
Pea plants grow quickly
b)
Pea plants are ultraviolet
c)
Pea plants are rare and expensive
d)
Pea plants are take years to grow
5.
The different forms of a gene
a)
heredity
b)
genetics
c)
gene
d)
alleles
6.
This trait always shows up in an organism when the allele is present
a)
dominant allele
b)
codominance
c)
probability
d)
recessive allele
7.
This trait is hidden whenever the dominant allele is present
a)
dominant allele
b)
codominance
c)
recessive allele
d)
Punnett Square
8.
A chart that shows all the possible combinations of alleles that can result from a genetic cross
a)
dominant allele
b)
codominance
c)
probability
d)
Punnett Square
9.
A ________________________ is used to predict the possible genotype from certain parents
a)
Mendel Grid
b)
Genetic Tic Tac Toe
c)
Punnett Square
d)
Pedigree Plot
10.
An organism's physical appearance or visible traits
a)
fertilization
b)
genotype
c)
phenotype
d)
homozygous
11.
An organism's genetic makeup, or allele combination
a)
fertilization
b)
genotype
c)
phenotype
d)
heterozygous
12.
An organism that has two identical alleles for a trait (purebred)
a)
genotype
b)
phenotype
c)
homozygous
d)
heterozygous
13.
In a dihybrid cross, how many boxes does the punnet square need to have?
a)
2
b)
4
c)
8
d)
16
14.
An organism that has two different alleles for a trait (hybrid)
a)
fertilization
b)
genotype
c)
homozygous
d)
heterozygous
15.
If a child has red hair, they inherited a certain _______________ from their parents.
a)
ratio
b)
trait
c)
probability
d)
sex chromosome
16.
True or False: Recessive traits are ALWAYS present
a)
True
b)
False
17.
Which of the following pairs is homozygous dominant?
a)
Hh
b)
pp
c)
HH
d)
aa
18.
A ___________________ is a relationship between two numbers
a)
genetic
b)
trait
c)
ratio
d)
cycle
19.
One set of instructions for an inherited trait
a)
heredity
b)
allele
c)
trait
d)
gene
20.
One of the alternative forms of a gene that governs a characteristic, such as hair color
a)
allele
b)
gene
c)
trait
d)
DNA
21.
Which of the following is heterozygous?
a)
Hh
b)
gg
c)
HH
d)
GG
22.
Emily has brown hair. Which is most likely a true statement about Emily?
a)
Emily’s favorite color is brown.
b)
Emily has a parent with brown hair.
c)
Emily’s older brother has brown hair.
23.
Bunny A’s fur is all brown, while his brother and sisters are half brown and half white. The bunnies’ father is all brown, and the mother bunny is half brown and half white. Which best describes why Bunny A has brown fur?
a)
The bunny inherited a brown fur characteristic from each parent.
b)
The bunny inherited a white fur characteristic from each parent.
c)
The bunny rejected the white characteristics from its mother.
d)
The bunny rejected the brown characteristics from its father.
24.
Mark is asked to write a brief description of himself for the school paper. Which characteristic mentioned in his description has Mark most likely inherited from his parents?
a)
height
b)
favorite food
c)
interest in sports
d)
ability to speak a foreign language
25.
A litter of kittens have traits that are similar to both the mother cat and the father cat. Which best explains this situation?
a)
The kittens are provided the same kind of milk from their mother as they grow.
b)
The kittens inherit some of their traits from their mother and some from their father.
c)
The kittens are kept at the same temperatures by their mother when they are first born.
d)
The kittens are taught by their parents to have similar traits.
26.
Which characteristic would a child not inherit from one or both of its parents?
a)
freckles
b)
hair style
c)
eye color
d)
dimples
27.
Dominant or recessive?
tt
tt
a)
Dominant
b)
Recessive
28.
One trait that is ALWAYS present and causes the other traits to disappear is a ________________________
a)
recessive trait
b)
aggressive trait
c)
absent trait
d)
dominant trait
29.
In a certain species of animal, black fur (B) is dominant over tan fur (b).
Which type of dominance does this cross show?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
30.
Snapdragon flowers come in red, pink and white. What type of inheritance is this?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
31.
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
32.
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
33.
Which of the following statements is true regarding blood types?
a)
A and O are codominant, B is recessive.
b)
B and O are codominant, A is recessive.
c)
A and B are codominant, O is recessive.
d)
A , B and O are all codominant with each other.
34.
True or False: Men can NEVER be "carriers" for recessive sex-linked traits because they only have one X chromosome.
a)
True
b)
False
35.
A red lily crossed with a yellow lily produces heterozygous orange lily flowers. This is an example of which type of inheritance?
a)
Codominance
b)
Incomplete Dominance
c)
Sex Linked
d)
Polygenic Trait
36.
A yellow fish, when crossed with a blue fish, produces heterozygous fish with blue AND yellow scales. This is an example of which type of inheritance?
a)
Sex Linked
b)
Polygenic
c)
Codominance
d)
Incomplete Dominance
37.
If the heterozygous genotype leads to a BLEND of the other two traits, this is an example of ______________.
a)
Incomplete Dominance
b)
Codominance
c)
Multiple Alleles
d)
Polygenic Inheritance
38.
A heterozygous condition in which BOTH alleles are equally expressed is an example of _________________.
a)
Codominance
b)
Incomplete Dominance
c)
Polygenic Inheritance
d)
Multiple Alleles
39.
Phenotypes which result as a combination of MANY genes, such as skin color and eye color, are known as ______________ traits.
a)
Monogenic
b)
Dihybrid
c)
Multiple Allele
d)
Polygenic
40.
If a trait is controlled by one gene, but there are 4 possible alleles, the inheritance pattern is called...
a)
dominance
b)
sex-linked
c)
multiple alleles
d)
polygenic
41.
The range of human skin colors is caused by a variety of genes, each of which has at least 2 alleles. This is an example of:
a)
incomplete dominance
b)
codominance
c)
multiple alleles
d)
polygenic inheritance
42.
What type of phenotype is controlled by many genes?
a)
Incomplete Dominance
b)
Complete Dominance
c)
Epistasis (Polygenic Inheritance)
d)
Pleiotropy
43.
A change in a chromosome in which a broken piece gets reattached in the wrong location is the definition of
a)
Duplication
b)
Deletion
c)
Inversion
d)
Translocation
44.
Colorblindness is more common in males than in females because
a)
Fathers pass the allele for colorblindness to their sons only
b)
The allele for colorblindness is located on the Y chromosome.
c)
The allele for colorblindness is recessive and located on the X chromosome.
d)
Males who are colorblind have two copies of the allele for colorblindness.
45.
Which of the following disorders is a direct result of nondisjunction?
a)
sickle cell disease
b)
Turner's syndrome
c)
Huntington's disease
d)
cystic fibrosis
46.
How many TOTAL chromosomes do humans have?
a)
2
b)
44
c)
46
d)
23
47.
There are _______ autosomes in humans.
a)
2
b)
23
c)
46
d)
44
48.
This is a chart used to analyze the pattern of inheritance that shows the relationships in a family.
a)
pedigree
b)
genotype
c)
genome
d)
karyotype
49.
Looking at the karyotype, is this person male or female?
a)
There is no way to tell from a karyotype.
b)
Male
c)
Female
d)
This person has a genetic disorder
50.
This is a picture of chromosomes arranged in homologous pairs---what is it called?
a)
Genome
b)
Punnett Square
c)
Karyotype
d)
Autosomal cells
100 %
