By looking at which internal structure of a plant can you tell whether a plant is C_(3) or C_(4) ? Explain.

Differentiate between C_(3) & C_(4) plants .

From what you have learnt, can you tell whether enzymes are bigger or DNA is bigger in molecular size ? How did you know ?

Why do you call some plant as fossil plants

Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in F_(1) generation are then cross-bred to produce F_(2) generation of pea plants. (a) What do the plants of F_(1) generation look like? (b) What is the ratio of tall plants to dwarf plants in F_(2) generation? (c ) Which type pf plants were missing in F_(1) generation but reappeared in F_(2) generation?

Ex situ conservation is used for the conservation of (a) all plants (b) all animals (c) threatened animals and plants (d) both (a) and (b)

Differentiate C_(3) Plants and C_(4) Plants.

(i) Read the following content and answer the questions below: Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in F_1 eneration are then cross-bred to produce F_2 generation of pea plants. (a) What do the plants of F_1 generation look like? (b) What is the ratio of tall plants to dwarf plants in F_1 generation? (c) Which type of plants were missing in F_1 generation but reappeared in F_2 generation? (ii) Why is the sino-atrial mode called the pacemaker of heart ?

Write the difference between C_(3)" plant " C_(4) plants

A process that makes important difference between C_3 and C_4 plant is: