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WorksheetsInheritance review
Total questions: 25
Worksheet time: 3615secs
Name
Class
Date
1.
How are incomplete dominance and co-dominance different than a normal dominant / recessive pattern of inheritance?
a)
There is no difference
b)
The heterozygous genotype has a unique phenotype
c)
There is no heterozygous genotype
d)
There is only one phenotype regardless of genotype.
2.
What type of inheritance do two alleles have if their traits blend together?
a)
Incomplete Dominance
b)
Co-Dominance
c)
Dominant / Recessive Inheritance
d)
Homozygous Inheritance
3.
A breed of chicken shows co-dominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:
a)
all black
b)
all white
c)
all gray
d)
speckled black and white
4.
The genotype of: bb will have the PHENOTYPE of...
a)
black fur
b)
white fur
c)
course hair
d)
fine hair
5.
The genotype of: Heterozygous Course Hair will have the alleles of...
a)
Hh
b)
HH
c)
hh
6.
a)
1:1
b)
2:1
c)
3:1
d)
4:1
7.
a)
1/4
b)
1/3
c)
2/3
d)
3/4
8.
Which gentotype would be considered heterozygous?
a)
Rr
b)
RR
c)
rr
d)
YY
9.
different forms of the same gene are called
a)
alleles
b)
genetics
c)
p generation
d)
law of segregation
10.
What is the genotype(s) of the F1 offspring that has the dominant trait?
a)
BB
b)
bb
c)
Bb
d)
BB and bb
11.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
12.
In a ____________ cross, one pair of contrasting traits are being crossed.
a)
monohybrid
b)
dihybrid
c)
trihybrid
d)
quadhybrid
13.
The first set of offspring after the p-generation is known as the;
a)
P2 generation
b)
F1 generation
c)
F2 generation
d)
p-generation
14.
If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?
a)
100% Tt
b)
50% Tt, 50% tt
c)
75%Tt, 25%tt
d)
25%TT, 50%Tt, 25%tt
15.
Having two of the SAME alleles for a trait (example HH or hh):
a)
homozygous
b)
heterozygous
c)
recessive
d)
dominant
16.
How can two parents with brown eyes have a child with blue eyes?
a)
The parents may both have recessive genes for blue eyes.
b)
The child was born during the winter
c)
Eye color in humans is not an inherited trait
d)
The child was deprived of oxygen during its birth
17.
What type of inheritance is determined by multiple genes located at different loci on different chromosomes and there can be a range of traits?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
18.
Which of the following genotypes belongs in the red box in the Punnett square?
a)
XBXb
b)
XbXb
c)
XbY
d)
XBY
19.
Polygenic traits such as height and skin colour can be influenced by both:
a)
Genotype and Phenotype
b)
Genotype and Environmental conditions
c)
Phenotype and Environmental conditions
d)
Environmental conditions and alleles
20.
Males are more likely to inherit X-linked recessive conditions than females due to:
a)
Having a smaller Y chromosome
b)
More genes being passed on by their mother
c)
Only having one X Chromosome which means if they have the gene it will be expressed
21.
Phenotypes for polygenes display ________ as these fall into many classes rather than one distinct group
a)
discontinuous variation
b)
continuous variation
c)
variation
22.
Epigenetics is:
a)
the study of heredity
b)
the study of how cells with identical genotypes can show different phenotypes.
c)
the study of phenotypic variation in polygenes
23.
a)
50%
b)
25%
c)
75%
d)
100%
24.
a)
25%
b)
50%
c)
100%
d)
755
25.
A test cross is performed between:
a)
Two heterozygous individuals
b)
Two homozygous individuals who show the dominant trait
c)
A homozygous individual that shows the dominant trait and a heterozygous individual
d)
An individual with the dominant trait and an individual showing the recessive trait
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