When a tall plant and pure dwarf plant were crossed all offspring were tall in first generation why arent dwarf plant observed

A cross between two pure breeding tall (TT) and dwarf (tt) parent plants produce uniform F

Explanation:

generation of dominant individuals (Tt).

According to the law of dominance, a trait is represented by two contrasting factors of a gene in a heterozygous individual; the allele/factor that can express itself in a heterozygous individual is called as a dominant trait. Another factor whose effect is masked by the presence of a dominant factor is called a recessive factor. The recessive factor, t, is present in F

 hybrids but its expression is masked by the factor for a dominant trait, T.