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WorksheetsIncomplete Dominance and Codominance
Total questions: 40
Worksheet time: 10hrs 0mins
When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....
Incomplete Dominance
Codominance
Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).
Cross a red flower with a speckled flower. What is the phenotypic ratio?
2 red, 2 speckled
2 red, 2 blue
2 blue, 2 speckled
Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).
Cross two speckled flowers.
1 red, 2 speckled, 1 blue
2 red, 2 blue
2 blue, 2 speckled
1 red, 1 speckled, 2 blue
Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).
Cross a red flower with a blue flower.
1 red, 2 speckled, 1 blue
2 red, 2 blue
4 speckled
1 red, 1 speckled, 2 blue
In mice coat color is incompletely dominant. Black and white are homozygous. Brown mice are heterozygous.
What is the genotype for a brown mouse?
BB
Bb
bb
In cattle red coats are represented as RR, and white coats are represented as WW.
What is the genotype for Roan color?
RR
RW
WW
Complete a cross between 2 speckled flowers and find the genotype ratio.
A woman with curly hair and a man with straight hair produced a child with wavy hair:
Incomplete dominance
Codominance
Complete dominance
The blending of two traits is known as ---
incomplete dominance
codominance
This type of inheritance pattern is a MIXTURE of two traits. This is known as ---
incomplete dominance.
codominance
A condition in which both alleles for a gene are expressed so that both traits are visible is known as ---
Codominance
Incomplete dominance
What type of inheritance do two alleles have if their traits blend together?
Incomplete dominance
Codominance
What type of inheritance pattern is shown here?
Codominance
Incomplete dominance
If you cross a black chicken with a white chicken, only black and white checkered chickens would be produced. What kind of inheritance pattern does this follow?
Incomplete dominance
Codominance
What does this Punnett square and the probabilities of the ofspring represent?
incomplete dominance
codominance
The hair form gene shows incomplete dominance. Straight hair (SS) is dominant, curly hair (CC) is recessive, and wavy hair (SC) is heterozygous. Mr. and Mrs. Anderson both have wavy hair (SC). What percentage of their children will also have wavy hair (SC)?
25%
50%
75%
100%
Codominance occurs in calico cats, which allows for the Black and Tan colors to show. What percentage of the offspring will be calico (black and tan spotted)?
25
50
75
100
Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be black?
25
50
75
100
Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be white?
25
50
0
100
Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be gray?
25
50
75
100
A brown rooster and a white chicken produced this speckled offspring:
Incomplete dominance
Codominance
Complete dominance
A black male and white female produced this grey offspring:
Incomplete dominance
Codominance
Complete dominance
A long-haired female rabbit and a short-haired male rabbit produced this offspring with a medium-length coat:
Incomplete dominance
Codominance
Complete dominance
A pink flower and a white flower produced this offspring:
Incomplete dominance
Codominance
Complete dominance
A pink flower and a white flower produced this offspring:
Incomplete dominance
Codominance
Complete dominance
A man with blue eyes and a woman with brown eyes produced a child with brown eyes:
Incomplete dominance
Codominance
Complete dominance
Which of the following is NOT true of dominant genes?
Dominant genes are always expressed wherever they are present.
A dominant gene will overpower all other genes to be the only one expressed.
Two dominant genes can be expressed together in a situation of co-dominance.
None of the above.
"The offspring's phenotype is an intermediate (blended) phenotype of the two parental phenotypes"
Incomplete dominance
Codominance
Complete dominance
"The offspring's phenotype has independent and equal expression of both parental phenotypes"
Incomplete dominance
Codominance
Complete dominance
