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10 questions
In a monohybrid cross of complete dominance, what is the phenotypic ratio?
1:2:1
3:1
9:3:3:1
12:4
In a monohybrid cross of incomplete dominance, what is the phenotypic ratio?
1:2:1
3:1
9:3:3:1
12:4
In a dihybrid cross of complete dominance, what is the phenotypic ratio?
1:2:1
3:1
9:3:3:1
12:4
In a population of 100 offspring, how many would you expect to be homozygous dominant in a cross between a homozygous dominant and a homozygous recessive?
0
25
50
75
100
In a population of 200 offspring, how many would you expect to be homozygous recessive in a cross between a heterozygous and a homozygous recessive?
0
50
100
150
200
In a cross between a white (recessive) and red (dominant), what is the probability of a pink offspring?
0%
25%
50%
75%
100%
In a cross between a white, terminal (recessive) and red, axial (dominant), what is the probability of a red, axial offspring?
1/16
3/16
9/16
16/16
In a cross between an individual with A blood and an individual with B blood, what is the probability of an offspring with O blood?
0/4
1/4
1/2
3/4
4/4
In a cross between two roan cows, what is the probability of a white cow?
0/4
1/4
1/2
3/4
4/4
Identify which of the following descriptions about dominance are correct
Incomplete dominance involves the homozygous dominant and heterozygous looking the same.
Incomplete dominance involves the heterozygous offspring resulting in an intermediate between the two dominant traits.
Codominance involves the heterozygous offspring resulting in an intermediate between the two dominant traits
Codominance involves the homozygous dominant and heterozygous looking the same.
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