Biology
Grade-10
Easy
Question
In case of co-dominance:
The product is from both the alleles.
The product is from a single dominant allele.
The product is from two recessive alleles.
The product is from a single allele.
The product is from both the alleles.
The product is from a single dominant allele.
The product is from two recessive alleles.
The product is from a single allele.
Hint:
No allele is completely dominant or recessive.
The correct answer is: The product is from both the alleles.
- Co-dominance is due to the expression of both the alleles in a gene.
- In co-dominance, there is no dominant or recessive allele.
- The alleles do not mask the effect of the other allele.
- The phenotype of the progeny will be a mixture of both the alleles.
- Blood group is an example of codominance.
- A, B and O are alleles responsible for blood groups.
- Neither of the allele is completely dominant over other.
- Example: For a person with AB blood group, the expression of both A and B alleles occurs.
Related Questions to study
Biology
Which of the following is a term used to refer to a gene variant?
Which of the following is a term used to refer to a gene variant?
BiologyGrade-10
Biology
In incomplete dominance __________________________.
In incomplete dominance __________________________.
BiologyGrade-10
Biology
When two or more than two genes affect the expression of each other it is known as _________.
When two or more than two genes affect the expression of each other it is known as _________.
BiologyGrade-10
Biology
How is incomplete dominance and co-dominance different from a normal Mendelian cross?
How is incomplete dominance and co-dominance different from a normal Mendelian cross?
BiologyGrade-10
Biology
Which of the following is the genotype for blood group B?
- Dominant allele will mask the effect of the recessive allele.
Which of the following is the genotype for blood group B?
BiologyGrade-10
- Dominant allele will mask the effect of the recessive allele.
Biology
Mendel obtained what phenotypic ratio in the F2 generation in his dihybrid cross?
Mendel obtained what phenotypic ratio in the F2 generation in his dihybrid cross?
BiologyGrade-10
Biology
If the traits of two alleles blend together and express then the inheritance pattern is:
If the traits of two alleles blend together and express then the inheritance pattern is:
BiologyGrade-10
Biology
ABO blood groups are an example of which of the following?
- A gene is the unit of heredity
- A gene contains two alleles
- Both alleles can be same or different
- The allele can be dominant or recessive
ABO blood groups are an example of which of the following?
BiologyGrade-10
- A gene is the unit of heredity
- A gene contains two alleles
- Both alleles can be same or different
- The allele can be dominant or recessive
Biology
Sickle cell anemia is an example of incomplete dominance.
Sickle cell anemia is an example of incomplete dominance.
BiologyGrade-10
Biology
A mixture of both the alleles is seen in the progeny in co-dominance.
A mixture of both the alleles is seen in the progeny in co-dominance.
BiologyGrade-10
Biology
The genotypic ratio and phenotypic ratio are same in co-dominance.
The genotypic ratio and phenotypic ratio are same in co-dominance.
BiologyGrade-10
Biology
The phenotypic ratio in co-dominance is___________.
The phenotypic ratio in co-dominance is___________.
BiologyGrade-10
Biology
The following is an example of______________.
The following is an example of______________.
BiologyGrade-10
Biology
How many pair of contrasting characters were studied by Mendel?
How many pair of contrasting characters were studied by Mendel?
BiologyGrade-10
Biology
A calico cat exhibits both the characters for orange fur and black fur. What kind of expression is this?
A calico cat exhibits both the characters for orange fur and black fur. What kind of expression is this?
BiologyGrade-10
