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WorksheetsHeredity Quiz
Total questions: 32
Worksheet time: 33mins
Name
Class
Date
1.
An organism’s genetic makeup, or combination of alleles.
a)
purebred
b)
phenotype
c)
codominance
d)
genotype
2.
An organism’s physical appearance, or visible traits.
a)
genotype
b)
dominant trait
c)
phenotype
d)
hybrid
3.
Having two different genes for a trait (sometimes called hybrid).
a)
phenotype
b)
homozygous
c)
heterozygous
d)
genotype
4.
Having two identical genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
5.
An allele whose trait always shows up in the organism when the allele is present.
a)
recessive allele
b)
dominant allele
c)
codominant allele
d)
heterozygous allele
6.
Having two different alleles for a trait (example Hh):
a)
homozygous
b)
heterozygous
c)
dominant
d)
purebred
7.
Having two of the SAME alleles for a trait (example HH or hh):
a)
homozygous
b)
heterozygous
c)
recessive
d)
dominant
8.
What is genetics?
a)
the study of nucleotides.
b)
The study of heredity.
c)
The study of a cell dividing into 2.
d)
The study of chemical interactions.
9.
What is heredity?
a)
how different genes and traits are passed down from parents to children
b)
how different genes and traits are passed down from children to parents
c)
how traits are identical to parents
d)
how traits are different between siblings
10.
What is a gene?
a)
an entire chromosome that codes for a trait
b)
a piece of clothing
c)
a section of a DNA on chromosome that codes for a trait
d)
a section of RNA in the cytoplasm.
11.
What is a dominant allele?
a)
a trait that is always shown (capital letter)
b)
a trait that can be hidden (lower case letter)
c)
alleles that are the same
d)
alleles that are different
12.
What is a recessive allele?
a)
a trait that is always shown (capital letter)
b)
a trait that can be hidden (lower case letter)
c)
alleles that are the same
d)
alleles that are different
13.
One of the alternative (different) forms of a gene that governs a characteristic, such as hair color
a)
allele
b)
gene
c)
trait
d)
DNA
14.
A number that describes how likely it is that an event will occur.
a)
dominant
b)
genotype
c)
phenotype
d)
probability
15.
A single piece of coiled DNA found in the cells; contains genes that encode traits.
a)
gene
b)
chromosome
c)
trait
d)
DNA
16.
Which cellular process is shown?
a)
meiosis
b)
respiration
c)
mitosis
d)
fertilization
17.
Who is considered the "father of genetics"?
a)
Gregor Mendel
b)
Reginald Punnett
c)
James Watson
d)
Rosalind Franklin
18.
Where is DNA located?
a)
only in the brain
b)
the nucleus
c)
only in plant cells.
d)
in TrNA
19.
An organism with a hybrid trait has _________.
a)
two identical alleles for a trait
b)
only one allele for a trait
c)
two different alleles for a trait
d)
three different alleles for a trait
20.
____________________ are used to make predictions about the offspring.
a)
allele grids
b)
punnett grids
c)
punnett squares
d)
allele squares
21.
The offspring produced by crossing two individuals with different traits, where the offspring have both traits of the parents, is
a)
gene
b)
pure bred
c)
mitosis
d)
hybrid
22.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
dominance
b)
codominance
c)
heterzygous
d)
recessive
23.
Every genotype has two...
a)
alleles
b)
phenotypes
c)
traits
d)
genes
24.
An example of a phenotype...
a)
sunlight
b)
gravity
c)
personality
d)
curly hair
25.
What is the joining of the sperm and egg cell called?
a)
wilting
b)
fertilization
c)
dominant trait
d)
recessive allele
26.
You have 46 of these in your nucleus.
a)
genes
b)
genotypes
c)
chromosomes
d)
phenotypes
27.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
heterozygous
b)
homozygous
c)
codominance
d)
recessive
28.
What do you call a section of DNA that codes for a specific trait?
a)
nucleus
b)
chromosome
c)
gene
d)
DNA
29.
An organism's genotype describes its __________.
a)
genetic makeup
b)
physical appearance
30.
Purebred is another word for __________, while hybrid is another word for __________.
a)
dominant; recessive
b)
recessive; dominant
c)
homozygous; heterozygous
d)
heterozygous; homozygous
31.
The two different forms of a gene are called _________.
a)
genotypes
b)
traits
c)
phenotypes
d)
alleles
32.
What word describes how traits are passed from parent to offspring?
a)
alleles
b)
dominance
c)
genetics
d)
heredity
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