Question

If we cross pure-bred tall (dominant) pea plant with pure-bred dwarf (recessive) pea plant we will get Pea plant of $F_1$ generation, then we obtain Pea plants of $F_2$ generation.
(a) What do the plants of $F_1$ generation look like?
(b) State the ratio of tall plants to dwarf plants in $F_2$ generation.
(c) State the type of plants not found in $F_1$ generation but appeared in $F_2$ generation, mentioning the reason for the same.

Answer 1

(a) $F_1$ plants: All tall (the dominant trait)

(b) $F_2$ generation= 3 tall : 1 dwarf

(c) $F_1$ plants do not exhibit dwarfism as presence of dominant allele (T) in monohybrid (Tt) mask the expression of rececssive allele (t). Two factors for a trait (alleles for tallness and dwarfism), present together in a heterozygous individual (Tt), do not get mixed and are separated during gametogenesis and exhibited in $F_2$ generation.