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WorksheetsGenetics Test Review
Total questions: 19
Worksheet time: 10mins
Name
Class
Date
1.
What does a Punnett Square show?
a)
All of Mendel's discoveries about Genetics
b)
Only recessive alleles in a genetic cross
c)
All the possible outcomes of a genetic cross
d)
Only the dominant alleles in a genetic cross
2.
__________ is genetic material on chromosomes organized into a double helix.
a)
Genotype
b)
DNA
c)
Genetics
d)
Monohybrid
3.
One gene from a gene pair is called DNA.
a)
True
b)
False
4.
Inherited traits can never blend.
a)
True
b)
False
5.
The different forms of a gene are called
a)
alleles
b)
factors
c)
masks
d)
traits
6.
______________ is the physical appearance of an organism as a result of its genotype.
a)
Genotype
b)
DNA
c)
Phenotype
d)
Dominant
7.
______________ is known as the "Father of Genetics".
a)
Recessive
b)
Chromosomes
c)
DNA
d)
Gregor Mendel
8.
What does the notation "TT" mean in genetics?
a)
Two recessive alleles
b)
Two dominant alleles
c)
One dominant and one recessive allele
d)
A heterozygous organism
9.
What does the notation "Tt' mean to geneticists?
a)
One dominant and one recessive allele
b)
Two dominant alleles
c)
Two recessive alleles
d)
A Homeozygous organism
10.
An organism's genotype is its _________________
a)
feather color
b)
stem height
c)
genetic makeup
d)
physical appearance
11.
Inherited traits can be dominant, recessive or neither.
a)
True
b)
False
12.
_______________ is the study of how traits are passed from parents to offspring.
a)
Monohybrid
b)
Genetics
c)
Chromosome
d)
Genotype
13.
The structure in a cell's nucleus that contains DNA is called a ____________.
a)
Chromosome
b)
Genotype
c)
Dominant
d)
Recessive
14.
For a ___________ trait, one allele is dominant and one is recessive.
a)
phenotype
b)
DNA
c)
monohybrid
d)
genetics
15.
If an organism has a monohybrid trait, the ____________ allele will show in its phenotype.
a)
Gene
b)
Genetics
c)
Recessive
d)
Dominant
16.
Traits in a genotype are always seen in the phenotype.
a)
True
b)
False
17.
Chromosomes carry the genes for different traits.
a)
True
b)
False
18.
All characteristics are inherited, but environmental factors can change some of them.
a)
True
b)
False
19.
If a purebred black guinea pig (BB) was crossed with a purebred white (bb), what is the probability that an offspring will have black fur?
a)
25%
b)
50%
c)
75%
d)
100%
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