Worksheets11-03 Incomplete Dominance & Codominance
Total questions: 25
Worksheet time: 17mins
#1
Coat color in monkeys is incompletely dominant. Brown and red-colored monkeys are homozygous, while yellow-colored monkeys are heterozygous. If two yellow-colored monkeys mate, what phenotypic ratio can we expect of their offspring?
2 brown : 1 yellow : 2 red
2 brown : 0 yellow : 2 red
1 brown : 2 yellow : 1 red
1 brown : 3 yellow : 0 red
#1
Coat color in monkeys is incompletely dominant. Brown and red-colored monkeys are homozygous, while yellow-colored monkeys are heterozygous. If two yellow-colored monkeys mate, identify the P1 genotype(s). SELECT ALL THAT APPLY
YY
BB
BR
RR
#1
Coat color in monkeys is incompletely dominant. Brown and red-colored monkeys are homozygous, while yellow-colored monkeys are heterozygous. If two yellow-colored monkeys mate, identify the F1 genotype(s).
BR
BB, RR
BB, BR, RR
BB, BR
#2
In pumpkins, orange and yellow are pure-breeding colors, while hybrids are white. If an orange pumpkin is crossed with a yellow pumpkin, what will be the phenotype(s) of the F1 generation?
white
orange
orange, white
yellow, orange
#2
In pumpkins, orange and yellow are pure-breeding colors, while hybrids are white. If an orange pumpkin is crossed with a yellow pumpkin, identify the genotype(s) of the P1 generation.
OY
YY, OY
OO, YY
OO, OY
#2
In pumpkins, orange and yellow are pure-breeding colors, while hybrids are white. If an orange pumpkin is crossed with a yellow pumpkin, identify the phenotype(s) of the F2 generation if the F1 generation self-pollinates.
yellow, orange
orange, white, yellow
orange, white
white
#3
In primroses, flower color is controlled by incomplete dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype for RR?
(a)
#3
In primroses, flower color is controlled by incomplete dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype for WW?
(a)
#3
In primroses, flower color is controlled by incomplete dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype for RW?
(a)
#3
In primroses, flower color is controlled by incomplete dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
A pink-flowered primrose is crossed with a white-flowered primrose. What is the probability of producing a pink-flowered primrose?
(PERCENTAGE)
(a)
#3
In primroses, flower color is controlled by incomplete dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What cross will produce the most pink-flowered primroses?
red x white
pink x pink
red x pink
pink x white
#4
In turtle doves, black-feathered turtle doves and white-feathered turtle doves are homozygous. The heterozygous genotype is expressed as gray.
A black turtle dove is crossed with a white turtle dove. Identify the genotype(s) of the P1 generation.
(SELECT ALL THAT APPLY)
BB
WW
BW
#4
In turtle doves, black-feathered turtle doves and white-feathered turtle doves are homozygous. The heterozygous genotype is expressed as gray.
A black turtle dove is crossed with a white turtle dove. Identify the phenotype(s) of the F1 generation.
black
gray
white, gray
black, white
#5
Coat color in guinea pigs is a codominant trait. Brown and red-colored guinea pigs are homozygous, while red-and-brown striped guinea pigs are heterozygous.
If two striped guinea pigs mate, what phenotypic ratio can we expect of their offspring?
1 brown : 2 striped : 1 red
2 brown : 1 striped : 1 red
2 brown : 0 striped : 2 red
1 brown : 1 striped : 2 red
#6
In marigolds, orange and yellow are pure-breeding colors, while hybrids are orange with yellow stripes.
What is the phenotype if the genotype is OO?
orange
orange with yellow stripes
yellow
#6
In marigolds, orange and yellow are pure-breeding colors, while hybrids are orange with yellow stripes.
What is the phenotype if the genotype is OY?
orange
orange with yellow stripes
yellow
#6
In marigolds, orange and yellow are pure-breeding colors, while hybrids are orange with yellow stripes.
What is the phenotype if the genotype is YY?
orange
orange with yellow stripes
yellow
#6
In marigolds, orange and yellow are pure-breeding colors, while hybrids are orange with yellow stripes.
If an orange marigold is crossed with a yellow marigold, what will be the phenotype(s) of the F1 generation?
orange, yellow
orange, orange with yellow stripes
orange, orange with yellow stripes, yellow
orange with yellow stripes
#6
In marigolds, orange and yellow are pure-breeding colors, while hybrids are orange with yellow stripes.
If an orange marigold is crossed with a yellow marigold, what will be the phenotype(s) of the F2 generation, if the F1 generation self-pollinates?
orange, yellow
orange, orange with yellow stripes
orange, orange with yellow stripes, yellow
orange with yellow stripes
In chickens, feather color is controlled by codominance. The two alleles are black and white. The heterozygous genotype is expressed as checkered.
What is the genotype if the phenotype is checkered?
(a)
#7
In chickens, feather color is controlled by codominance. The two alleles are black and white. The heterozygous genotype is expressed as checkered.
What is the genotype if the phenotype is black?
(a)
#7
In chickens, feather color is controlled by codominance. The two alleles are black and white. The heterozygous genotype is expressed as checkered.
What is the genotype if the phenotype is white?
(a)
#7
In chickens, feather color is controlled by codominance. The two alleles are black and white. The heterozygous genotype is expressed as checkered.
A checkered chicken is crossed with a white chicken. What is the probability of producing a white chicken?
(PERCENTAGE)
(a)
#8
In cows, red cows and white cows are homozygous. The heterozygous genotype is expressed as roan.
A roan cow is crossed with a roan bull. What is the probability of producing a red calf?
(PERCENTAGE)
(a)
#8
In cows, red cows and white cows are homozygous. The heterozygous genotype is expressed as roan.
A roan cow is crossed with a roan bull. What is the probability of producing a roan calf?
(PERCENTAGE)
(a)
