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Worksheetsdihybrid cross
Total questions: 15
Worksheet time: 21mins
In guinea pigs, short hair (H) is dominant to long hair (h). Also, black eyes (B) are dominant to red eyes (b).
Determine the genotype of a guinea pig with the phenotype: short hair with red eyes (select all possible genotypes)
HHbb
Hhbb
hhBB
HHBb
A person with the genotype BBMm could produce which of the gametes below ...
Bb
BM
bM
Bm
In horses, a straight mane (H) is dominant over a curly mane(h). Trotter horses (T) are dominant to pacer horses (t).
Determine the genotype of a horse with the phenotype: curly maned pacer horse
HhTT
hhTT
hhtt
HHtt
Heterozygous means
The organism has the same genes for the trait
The organism has two different genes for the same trait
The organism really needs to go shopping!
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
9/16
3/16
1/16
16/16
Which of the following is the genotype for a purebreed dominant alleles?
ggYy
GGYy
Ggyy
GGYY
Homozygous means
The organism has the same genes for the trait
The organism has two different genes for the same trait
The organism really needs to go shopping!
In rabbits, grey hair (G) is dominant to white hair (g). Also, black eyes (B) are dominant to red eyes (b).
Determine the genotype of a rabbit with the phenotype: purebred for grey fur with black eyes (select all possible genotypes)
GgBb
GGBb
GGBB
GgBB
What goes in box 15
aabb
AABB
aaBB
AAbb
In rabbits, grey hair (G) is dominant to white hair (g). Also, black eyes (B) are dominant to red eyes (b).
Determine the phenotype of a rabbit with the genotype: GGbb
purebred for both traits
purebred grey fur with red eyes
hybrid for both traits
purebred white fur with black eyes
