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31 questions
Brown hair (B) is dominant to blonde hair (b). Select all the allele combinations that would give you an individual with brown hair.
BB
Bb
bb
Pink feathers (P) are dominant to purple feathers (p). Select all the following genotypes that would give you an individual that had purple feathers.
PP
Pp
pp
Yellow fur (y) is recessive to black fur (Y) in cats. What would your genotype be for a cat that was homozygous recessive?
YY
Yy
yy
Freckles (f) are a recessive trait to no freckles (F). What would your genotype be for an individual who was heterozygous with no freckles?
FF
Ff
ff
Freckles (f) are a recessive trait to no freckles (F). What would your genotype be for an individual who was homozygous with no freckles?
FF
Ff
ff
Pink feathers (P) are dominant to purple feathers (p). Select all the following genotypes that would give you an individual that was homozygous dominant?
PP
Pp
pp
Pink feathers (P) are dominant to purple feathers (p). Select all the following genotypes that would give you an individual that had pink feathers.
PP
Pp
pp
If you cross a homozygous dominant individual with a heterozygous individual, which of the follow combinations would be correct?
Yy X Yy
UU X UU
rr X Rr
BB X Bb
If you cross a homozygous dominant individual with a homozygous recessive individual, which of the follow combinations would be correct?
TT X tt
UU X UU
rr X Rr
BB X Bb
If you cross a homozygous dominant individual with a homozygous dominant individual, which of the follow combinations would be correct?
TT X tt
NN X NN
rr X Rr
BB X Bb
If tall plants (T) are dominant to short plants (t), what would the phenotype be for the genotype TT
Tall
Short
Both
If smooth plants (P) are dominant to wrinkled plants (p), what would the phenotype be for the genotype pp.
Smooth
Wrinkled
Both
If albino fur (g) is recessive to gray fur (G), what would the phenotype be for the genotype Gg?
Gray
Albino
Both
What is the genotypic ratio for this cross?
2:2
4:1
1:3
1:1:1:1
If green peas are dominant to yellow peas, what is the phenotypic ratio for this cross?
2 green: 2 yellow
4 yellow: 0 green
4 green : 0 yellow
1 yellow : 3 green
What is the original parental cross?
Gg X Gg
gg X gg
Gg X gg
GG X GG
What is the probability of getting a heterozygous individual?
25%
50%
75%
100%
What is the probability of getting a homozygous recessive individual?
0%
25%
50%
75%
What is the probability of getting a homozygous dominant individual?
0%
25%
50%
75%
If green (G) is dominant to yellow (g), what is the probability of getting a green individual?
0%
25%
50%
75%
If green (G) is dominant to yellow (g), what is the probability of getting a yellow individual?
0%
25%
50%
75%
What is the genotypic ratio?
4:0
1:3
1:2:1
1:3:0
What is the probability of getting a homozygous dominant individual?
25%
50%
75%
100%
What is the probability of getting a homozygous recessive individual?
25%
50%
75%
100%
What is the probability of getting a heterozygous individual?
25%
50%
75%
100%
If tall plants (T) are dominant to short plants (t), what is the phenotypic ratio?
4:0
3:1
1:2:1
1:2:3
If tall plants (T) are dominant to short plants (t), what is the probability of getting a tall plant?
25%
50%
75%
100%
If tall plants (T) are dominant to short plants (t), what is the probability of getting a short plant?
25%
50%
75%
100%
What would be your genotypic ratio for this cross?
2 Tt : 2 tt
4 tt : 0 TT
2 TT: 2 Tt
3 Tt : 1 tt
If having a tail (T) is dominant to not having a tail (t), what percent chance would the offspring of this cross have to have a tail?
100%
0%
25%
50%
If having a tail (T) is dominant to not having a tail (t), what percent chance would the offspring of this cross have of not having a tail?
100%
0%
25%
50%
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