Question

The law of segregation of characters is also called the law of purity of gametes because:
(A) Gametes have only one of the two alleles for each character.
(B) Gametes cannot be contaminated.
(C) Both (a) and (b)
(D) Gametes are very different type of cells.

Answer 1

Hint: A single gene copy is randomly selected in each gamete that an organism produces. The segregation law is what is known as this. A Punnett square can be used to forecast the genotypes (allele combinations) and phenotypes (observable traits) of offspring via genetic crosses.

Complete Step by Step Answer:
According to Mendel's law of segregation, an individual's alleles separate during the development of gametes. True breeding tall plants (TT) and true breeding short plants were crossed by Mendel (tt). The F1 generation of this hybrid only produced tall plants of the genotype Tt. Anaphases I and II of meiosis are where Mendel's Segregation law takes place. The homologous chromosomes are sorted into two daughter nuclei with their different versions of each gene during this stage of the first meiotic division.

The law of purity of gametes is another name for the segregation rule. This law states that when gametes arise, a gene's two alleles split apart. Instead of blending, they segregate or divide into various gametes. As a result, every gamete is "pure" and has just one allele of each gene. Mendel created the F2 generation by self-crossing the F1 hybrids (Tt) in his monohybrid cross experiment. In the F2 generation, 3 tall plants and 1 dwarf plant are created phenotypically or genotypically as 1(TT) 2(Tt) 1(tt). He claimed that during gamete creation, each factor in a pair separates, leaving each gamete with just one factor for each character. It is also known as the purity of gametes law. It takes place during the meiotic process.

So, option (A) is correct.


Note: According to Mendel's law of segregation, "each gene separates from each other during the production of gametes, resulting in each gamete carrying only one allele for each gene." The second inheritance law is the law of segregation.