Question

If you are conducting a mono hybrid cross of tall (dominant) and dwarf (recessive) plants, the recessive trait in the f1 plants

Answer 1

) has alleles which are positively contributing to the trait. Therefore, when a cross is made between the dominant (TT) and recessive (tt), all new plants get atleast one dominant allele (Tt). Now, since “t” has no effect , all new plants will show the effect of “T”. For your ease i have shared a picture of cross between 

Answer 2

The recessive trait is t.

Step-by-step explanation:

The laws of genetics was formulated by Mendel while workinf on the pea plant Pisum sativum. The law of dominance and law of segregation was obtained by the monohybrid cross.

The cross between TT ( tall) and tt (dwarf) plants, all the offspring obtained from the F1 generation are tall (Tt) . Here, the T trait expresses over the t trait and hides the expression of t trait. The recessive trait cannot express itself in heterozygous condition Here, t trait acts as recessive trait and T acts as dominant trait.

Thus, the answer is t.