WorksheetsGenetics Review
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
What organism did Mendel use to establish the principles of genetics?
a)
White mice
b)
Fruit flies
c)
Pea plants
2.
What do the letters on the outside of a Punnett Square represent?
a)
the genotypes of the parents
b)
the phenotypes of the parents
c)
the possible genotypes of the offspring
d)
the possible phenotypes of the offspring
3.
What do the letters inside the boxes of a Punnett Square represent?
a)
the genotypes of the parents
b)
the phenotypes of the parents
c)
the possible genotypes of the offspring
d)
the possible phenotypes of the offspring
4.
Which of the following term refers to a cell that has just one allele for every trait?
a)
Somatic
b)
Gamete
c)
Diploid
d)
Mitotic
5.
Which of the following is the correct way to write the genotype of a hybrid organism for a single trait?
a)
AA
b)
aaaa
aaaa
c)
Aa
d)
AB
6.
If organisms have different phenotypes, then they also have
a)
different genotypes
b)
the same genotypes
c)
a homozygous genotype
d)
a heterozygous genotype
7.
Which of the following principles states that alleles on different chromosomes separate without regard for each other during gamete formation?
a)
Dominance
b)
Segregation
c)
Independent Assortment
8.
Which of the following principles states that alleles for one trait separate during gamete formation?
a)
Dominance
b)
Segregation
c)
Independent Assortment
9.
Which of the following terms refers to a trait with a wide range of phenotypes due to many pairs of genes being involved in its expression?
a)
Multiple alleles
b)
Polygenic inheritance
c)
Incomplete dominance
d)
Codominance
10.
In what type of trait are both alleles equally expressed in the heterozygous individual?
a)
Sex-linked traits
b)
Completely dominant traits
c)
Codominant traits
d)
Incompletely dominant traits
11.
In what type of traits is the phenotype of the heterozygous individual a mixture or blend of the two homozygous conditions?
a)
Sex-linked traits
b)
Completely dominant traits
c)
Codominant traits
d)
Incompletely dominant traits
12.
What type of trait is controlled by a gene with more than just two alleles?
a)
Polygenic inheritance
b)
Multiple alleles
c)
Codominance
d)
Incomplete dominance
100 %
