CBSE Class 10 Science 2019 · Paper 31/1/1 · Question 12(a)

Heredity 3 marks Medium

Name the plant Mendel used for his experiment. What type of progeny was obtained by Mendel in

F_{1}

and

F_{2}

generations when he crossed the tall and short plants? Write the ratio he obtained in

F_{2}

generation plants.

Answer

Garden pea; $F_{1}$ all tall; $F_{2}$ tall and short plants in the ratio $3 : 1$ .

Mendel used the garden pea plant (Pisum sativum).

F_{1}

: all the plants were tall (none short or of medium height).

F_{2}

(from self-pollinating the

F_{1}

): both tall and short plants. Ratio in

F_{2}

: tall : short

= 3 : 1

(in terms of factors,

TT : Tt : tt = 1 : 2 : 1

🔒 Step-by-step solution

Class 10 Science — every question with an expert-verified, step-by-step solution.