NEW
Font size
WorksheetsGenetics Quiz
Total questions: 10
Worksheet time: 5mins
What is the main difference between codominance and incomplete dominance?
In codominance, both alleles are expressed equally, while in incomplete dominance, the phenotype is a blend of both alleles.
In codominance, one allele is dominant over the other, while in incomplete dominance, both alleles are recessive.
In codominance, the phenotype is a blend of both alleles, while in incomplete dominance, one allele is completely expressed over the other.
There is no difference; both terms describe the same genetic phenomenon.
Which of the following is an example of codominance?
A red flower crossed with a white flower produces pink flowers.
A person with AB blood type.
A white chicken crossed with a black chicken produces grey chickens.
Tall plants dominating short plants in a cross.
In a Punnett square for a cross involving incomplete dominance, if R represents red flowers and r represents white flowers, what would be the genotype of pink flowers?
RR
Rr
rr
Rr or rr
What is the expected phenotype ratio in the offspring when two pink flowers (Rr) are crossed in a scenario of incomplete dominance?
1 red : 2 pink : 1 white
3 red : 1 white
All pink
2 red : 2 white
In a codominance scenario, if a black cow (BB) is crossed with a white cow (WW), and the alleles B and W are codominant, what would be the phenotype of the offspring?
All black
All white
Black and white spotted
Grey
What would be the genotype of a black and white spotted cow in a codominance scenario?
BB
WW
BW
None of the above
If a pink flower (Rr) is crossed with a white flower (rr) in incomplete dominance, what is the probability of obtaining a pink flower?
25%
50%
75%
100%
Which of the following statements is true about a Punnett square?
It is used to predict the outcome of genetic crosses.
It is used to determine the chemical composition of genes.
It is a tool for measuring physical traits in offspring.
It is used to change the genetic makeup of an organism.
In a codominance example, if a black and white spotted cow (BW) is crossed with a white cow (WW), what is the probability of getting a white cow?
25%
50%
75%
100%
What does a Punnett square show in a genetic cross?
The physical characteristics of the parents.
The possible genetic combinations of the offspring.
The actual outcomes in the offspring.
The environmental effects on genetic traits.
