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WorksheetsGenetics Unit Review
Total questions: 45
Worksheet time: 1hrs 2mins
Red flowers (R) are dominant over white flowers (r). Select the genotypes that would produce red flowers.
RR
Rr
rr
Rw
Select all of the following genotypes that are considered Homozygous.
AA
bb
Hh
Dd
zz
Which is a true statement about this picture?
Brown is recessive
Brown is dominant
Blue is dominant
Blue is codominant
In the Punnett Square below, what belongs in the missing square?
tt
Tt
Bb
TT
What does heterozygous mean?
An organism that has 2 of the same alleles for a trait.
An organism that has 2 different alleles for a trait.
When neither gene is fully dominant; offspring is a mixture of both.
The different forms of a trait.
Two brown eyed parents (Bb) have a baby. What is the chance their baby is blue eyed?
0 %
25%
50%
75%
How many offspring will show the recessive trait?
0%
25%
50%
75%
What percentage of the possible offspring are hybrids?
25%
50%
75%
100%
What are different versions of the same gene?
alleles
chromosomes
heterozygous
genetics
What is a diagram that is used to show how an inherited trait moves through a family?
eukaryote
heredity
genotype
pedigree
How many alleles does a child get from each parent for a trait?
1
2
3
4
On a pedigree, this symbol represents a ---
unaffected female.
unaffected male.
affected male.
affected female.
On a pedigree, this symbol represents a ----
unaffected male.
unaffected female.
affected male.
affected female.
In the second generation of this pedigree, how many people are carriers of the trait?
1
2
3
5
How many generations are shown in this pedigree?
1
2
3
4
The physical characteristics or expression of a gene is referred to as what?
genotype
phenotype
allele
pedigree
In fruit flies, eye color is a x-linked recessive gene. Red eyes (R) are dominant to white eyes (r). What would be the genotype of a white-eyed male?
XrY
XRY
XrXr
XRXr
What type of trait always shows up when present?
dominant
recessive
allele
phenotype
O
AB
A
B
Which blood type is the universal donor (all people can receive it)?
O
AB
A
B
Name the proteins on the surface of red blood cells.
Antibodies
Antigens
Plasma
Collagen
Name the protein(s) on the surface of blood type B?
A
B
A and B
O
What antibodies can be found when someone has blood type A?
none
A
B
A and B
In a pedigree, which shape represents a male?
circle
square
Which gender has an X and a Y chromosome?
male
female
How many individuals are there in the 3rd generation?
1
2
4
6
The individual is a carrier.
The individual expresses the trait.
The individual has both recessive alleles.
The individual has both dominant alleles.
Just males
Just females
Both genders
Which genotype represents a female who is a carrier for hemophilia?
Which genotype represents a male with hemophilia?
