Question

a plant shows incomplete dominance in size. a tall plant (tt) is crossed with a medium plant (ts). what fraction of plants will also be tall? 75% 25% 100% 50%

Explanation:

Step1: Determine the gametes

The tall plant (TT) can only produce T gametes. The medium plant (TS) can produce T and S gametes.

Step2: Create Punnett square

	T	S
T	TT	TS

Step3: Analyze the offspring

From the Punnett square, we have 2 TT (tall) and 2 TS (medium) offspring. The total number of offspring is 4. The fraction of tall plants is $\frac{2}{4} = \frac{1}{2}$ or 50%.

Answer:

50% (corresponding to the option with 50%)