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WorksheetsHeredity - Ratios/Probability
Total questions: 20
Worksheet time: 16mins
What is a genotype?
The combination of alleles
The physical characteristics
The numbers
What is a phenotype?
The combination of alleles
The physical characteristics
The numbers
Genotype ratios:
Compare the physical traits
Compare the genotypes
Compare the phenotypes
Phenotype ratios:
Compare the genotypes
Compare BB, Bb, and bb
Compare the phenotypes
Which of the following is an example of homozygous? (Hint: there's two)
HH
Hh
hh
Which of the following is an example of heterozygous?
HH
hh
Hh
What is the genotype ratio of Ff to ff?
1:4
1:3
1:1
4:0
T= tall, t = short
What is the phenotype ratio of tall to short?
1:1
1:2
4:0
3:4
What is the genotype ratio?
1:2
1:1:1
2:3:1
1:2:1
R= not red, r = red.
What is the phenotype ratio for red hair to none red hair?
1:3
3:2
1:2
4:0
B = brown fur, b = tan fur
What is the phenotype ratio of brown to tan fur?
2:3
1:1
4:0
1:2
F = freckles, f = no freckles
What is the phenotype ratio of freckles to no freckles?
1:4
1:3
1:1
4:0
What is the genotype ratio?
4:0
1:0
1:1
4:1
What is probability?
Measures the likelihood
Measures time
Measures space
B = brown fur, b = tan fur
What is the phenotype probability of brown fur?
25%
50%
75%
0%
T= tall, t = short
What is the probability of a short plant?
0%
25%
50%
100%
What is the probability of having a genotype of Ff?
0%
25%
50%
75%
What is the probability of having a homozygous dominant genotype?
25%
50%
0%
35%
What is the probability of having a heterozygous genotype?
25%
50%
0%
35%
T= tall, t = short
What is the probability of a tall plant?
0%
25%
50%
100%
