Question

It is written that "BOTH PARENTS CONTRIBUTE COPY OF THE SAME GENE ." but how can the parents have the same gene ? No individuals have the same DNA right?

If both parents can help determine the trait in the progeny, both parents must be contributing a copy of the same gene. This means that each pea plant must have two sets of all genes, one inherited from each parent. For this mechanism to work, each germ cell must have only one gene set.

Answer 1

Dear student,
Here it means that the gene for the same trait (character) are contributed by both the parents. Suppose there is the homozygous dominant gene for tallness (TT) in male parent and recessive gene for dwarfness in female parent (tt). Then T and t gametes are formed in male and female parent respectively. Then F1 formed will contain alleles from both the parent and heterozygous dominant plant (Tt) will be formd and the phenotype will be tallness.

Regards