Biology
Grade-10
Easy
Question
ABO blood groups are an example of which of the following?
Multiple alleles
Co-dominance
Incomplete dominance
Both a and b
Multiple alleles
Co-dominance
Incomplete dominance
Both a and b
Hint:
Incomplete dominance means partial expression of both the alleles of a gene, resulting in a mixed phenotype in the offspring.
The correct answer is: Both a and b
- ABO blood group is an example of co-dominance and multiple alleles.
- When an allele in a gene cannot suppress the effect of the other allele and both of them express themselves completely, it is called as co-dominance.
Here, no allele is considered as completely dominant or recessive.
- Multiple alleles refers to the presence of many alternative forms of the gene expressing a trait.
- When the dominant allele does not completely suppress the effect of the recessive allele, it is called as incomplete dominance
- Blood group has 3 alleles A, B and O producing four different blood groups A, B, AB and O
- Out of these three, any two alleles can be present in a gene.
- The alleles can show co-dominance and multiple alleles.
Here, no allele is considered as completely dominant or recessive.
- 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
Related Questions to study
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
Biology
This type of inheritance pattern is called:
This type of inheritance pattern is called:
BiologyGrade-10
Biology
The inheritance pattern in which both the traits get mixed in the phenotype is called__________.
The inheritance pattern in which both the traits get mixed in the phenotype is called__________.
BiologyGrade-10
Biology
If the genotype has one dominant and one recessive allele, then the phenotype will be:
If the genotype has one dominant and one recessive allele, then the phenotype will be:
BiologyGrade-10
Biology
An allele whose trait only shows up when the dominant allele is absent is called:
An allele whose trait only shows up when the dominant allele is absent is called:
BiologyGrade-10
Biology
Which of the following is an example of incomplete dominance?
Which of the following is an example of incomplete dominance?
BiologyGrade-10
Biology
Genotype is referred to as the_________________.
Genotype is referred to as the_________________.
BiologyGrade-10
Biology
A gene showing codominance has:
A gene showing codominance has:
BiologyGrade-10
Biology
Which branch of biology focuses on the study of inheritance?
Which branch of biology focuses on the study of inheritance?
BiologyGrade-10
