Which one of the following cannot be explained on the basis of Mendel’s Law Of Dominance?
Which one of the following cannot be explained on the basis of Mendel’s Law Of Dominance?
The correct option is D Alleles do not show any blending and both the characters recover as such in F2 generation
The correct option is D.
Explanation of correct option :
- In accordance with the Law of Dominance any heterozygous individual will carry two contrasting alleles or factors of a gene.
- Out of the two alleles only one will be able to express itself.
- The one which shows itself in the individual is called the dominant allele.
- The other is known as the recessive allele.
- Every characteristic of an organism will depend on a gene with two alleles.
- Thus, the law of domination suggests that the character of every organism will have at least two factors.
- The dominant allele will have its effect on both homozygous and heterozygous conditions.
- The recessive allele will have its effect on the homozygous condition.
- The statement mentioned in option D cannot be explained with the Law of Dominance.
Explanation of incorrect option :
Option A:
The option can be explained in accordance to the Law of Dominance. There are two factors present in an organism, one is dominant and another is recessive.
Option B :
When two components are distinct, one of them prevails (dominates) and another one (recessive). The option can be explained in accordance to the Law of Dominance. The dominant allele will have its effect on both homozygous and heterozygous conditions. The recessive allele will have its effect on the homozygous condition.
Option C :
Unit factors occur in pairs, so according to the Law of Dominance, one of the factors is dominant and another is recessive.
Final Answer: Alleles do not show any blending and both the characters recover as such in F2 generation cannot be explained on the basis of Mendel’s Law Of Dominance.
Alleles do not show any blending and both the characters recover as such in F2 generation
The correct option is D.
Explanation of correct option :
- In accordance with the Law of Dominance any heterozygous individual will carry two contrasting alleles or factors of a gene.
- Out of the two alleles only one will be able to express itself.
- The one which shows itself in the individual is called the dominant allele.
- The other is known as the recessive allele.
- Every characteristic of an organism will depend on a gene with two alleles.
- Thus, the law of domination suggests that the character of every organism will have at least two factors.
- The dominant allele will have its effect on both homozygous and heterozygous conditions.
- The recessive allele will have its effect on the homozygous condition.
- The statement mentioned in option D cannot be explained with the Law of Dominance.
Explanation of incorrect option :
Option A:
The option can be explained in accordance to the Law of Dominance. There are two factors present in an organism, one is dominant and another is recessive.
Option B :
When two components are distinct, one of them prevails (dominates) and another one (recessive). The option can be explained in accordance to the Law of Dominance. The dominant allele will have its effect on both homozygous and heterozygous conditions. The recessive allele will have its effect on the homozygous condition.
Option C :
Unit factors occur in pairs, so according to the Law of Dominance, one of the factors is dominant and another is recessive.
Final Answer: Alleles do not show any blending and both the characters recover as such in F2 generation cannot be explained on the basis of Mendel’s Law Of Dominance.
