Biology
Grade-10
Easy
Question
A gene showing codominance has:
One allele dominant over the other.
Alleles are recessive to each other.
Both alleles express independently of each other in the phenotype.
Alleles are tightly linked on same chromosome.
One allele dominant over the other.
Alleles are recessive to each other.
Both alleles express independently of each other in the phenotype.
Alleles are tightly linked on same chromosome.
Hint:
In co-dominance both the alleles express themselves independently in the phenotype.
The correct answer is: Both alleles express independently of each other in the phenotype.
- In codominance none of the allele is dominant over the other.
- In this case the character expressed is the sum of both the alleles without any phenotypic blending.
- The ABO blood grouping system and sickle cell anemia are the examples of codominance.
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