Biology
Grade-10
Easy
Question
How is incomplete dominance and co-dominance different from a normal Mendelian cross?
There is only one phenotype independent of the genotype.
There is no difference at all.
There is no heterozygous genotype.
The heterozygous genotype has a distinct phenotype.
There is only one phenotype independent of the genotype.
There is no difference at all.
There is no heterozygous genotype.
The heterozygous genotype has a distinct phenotype.
Hint:
The physical trait of an organism depends on the genotype.
The correct answer is: The heterozygous genotype has a distinct phenotype.
- The unit of heredity is gene, which is made up of two alleles.
- The two alleles can be same (homozygous) or different (heterozygous).
- In heterozygous alleles, one allele will be dominant over the other.
- In case of incomplete dominance, dominant allele will not mask the effect of the recessive allele.
- In co-dominance, neither of the allele is dominant nor recessive and both of them express themselves completely.
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