If the plants of F 1 progeny are self-pollinated, then whatwould be observed in the plants of F 2 progeny ?

The F1 progeny refers to the first filial generation, which is the result of cross pollination between two different parent plants. If these F1 plants are self-pollinated, the resulting generation is called the F2 progeny.

In the F2 progeny, you would observe a mix of traits from the F1 parent plants. This is due to the principles of Mendelian genetics, where each trait has a pair of genes, one from each parent.

In the F2 generation, you would typically see a phenotypic ratio of 3:1 for any particular trait, assuming the trait follows simple dominance. This means that three out of four plants would express the dominant trait, while one out of four would express the recessive trait.

For example, if the F1 plants were tall (a dominant trait) and were self-pollinated, in the F2 generation, you would expect about three quarters of the plants to be tall and one quarter to be short (the recessive trait).

However, this can vary if the traits are co-dominant, multiple alleles are involved, or the traits are linked to each other. In these cases, the ratios can be different.