Question
Question: The law of segregation is based on the fact that A. Alleles do not blend B. The paired factors o...
The law of segregation is based on the fact that
A. Alleles do not blend
B. The paired factors or alleles segregate from each other such that a gamete receives the two factors as in the original paired form.
C. Homozygous parents produce similar types of gametes whereas heterozygous ones produce two types of gametes each having one allele with unequal proportion.
D. All the above
Solution
Parents contain two alleles during gamete formation. The alleles for each gene during the process of gamete formation segregate from each other so that each gene carries only one allele for each gene. The alleles that contain the dominant trait determines the phenotype of the offspring.
Complete answer:
-Mendel’s Law of Segregation states that :
“During the formation of gamete, each gene separates from each other so that each gamete carries only one allele for each gene.”
- Law of segregation is based on the fact that alleles do not show any blending and that both the characters are recovered as such in the second filial generation though one of these is not seen in the first generation.
-The segregation of factors or a pair of alleles occurs in such a manner that the gamete receives only one of the two factors from each other.
-The parents that produce all the gametes similar are called the homozygous parent while those parents that produce two kinds of gametes are called heterozygous, each having one allele with equal proportion.
So, the correct answer is an option ‘All the above’.
Additional Information: -Mendel has proposed 3 laws of inheritance. These are the Law of Dominance, Law of Segregation, and the Law of Independent Assortment.
-These laws are described in “Experiments on plant hybridization.”
Note:
-Mendel proposed the Law of Segregation by performing experiments on pea plant breeding.
-The Law of segregation is also known as the “Law of purity of gametes .”