CBSE Class 10 Science 2022 · Paper 31/6/1 · Question 5(b)
If we cross a tall plant (Tt) with a short plant (tt), what ratio of (Tt) and (tt) plants shall we obtain in generation ? Show with the help of a diagram (flow chart) only.
Answer
Tt × tt gives Tt (tall) and tt (short) plants in the ratio 1 : 1.
Tt : tt = . Flow chart: Parents - tall (Tt) × short (tt); Gametes - T and t from the tall plant, t only from the short plant; Progeny - Tt, Tt, tt, tt; so Tt (tall) : tt (short) = . Half the plants are tall (Tt) and half are short (tt). (The flow chart is drawn in the figure.)
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