Question

The law of dominance mainly explains the reason for the similarity shown by the heterozygous offsprings
in the F1 and F2 with one parent it is;
1) presence of one gene behind the character
2) Biallelic nature of gene
3) Complete dominance shown by the gene
4) Impure nature of gene in F1 and F2

Answer 1

Answer:

1) presence of one gene behind the character

Answer 2

Answer:

1) The law of dominance mainly explains the reason for the similarity shown by the heterozygous offsprings presence of one gene behind the character

Explanation:

• A heterozygous individual carries two contrasting alleles/factors of a gene, according to the law of dominance. In this case, the individual can only express one allele. It's known as a dominant allele. The recessive allele is the one that does not show up in a heterozygous individual. Each of an organism's characters is governed by a gene with two alleles.
• As a result of this law, each character of an organism is represented by at least two factors, and one allele (dominant allele) has an influence in both homozygous and heterozygous conditions, whilst the other (recessive allele) has an effect only in homozygous conditions.
• Alleles do not blend, and both characters return to their original state in F2 generation.