Medium
If a tall pea plant (TT) is crossed with a short pea plant (tt), what will be the height of the offspring in the F1 generation?
Explanation
Explanation
Since tallness (T) is dominant over shortness (t), all offspring in the F1 generation will be heterozygous (Tt) and will show the dominant tall phenotype.
PRO TIP
Re-check your working by substituting the answer back into the original question.