Read the given statements.
(i) Outer exine is made up of sporopollenin.
(ii) Inner intine is pecto-cellulosic in nature
(iii) Generative cell is bigger and contains abundant food reserve
(iv) Vegetative cell is small and floats in the cytoplasm of the generative cell.
Which of the given statements are not true regarding structure of pollen grain?

Read the following four statements ( A -D ): (i) The outer wall of the pollen grain is pecto - cellulosic in nature. (ii) In pollen grain, the generative cell is bigger and contains abundant food reserve. (iii) In all angiosperm , pollen grains are always shed at the 2-celled stage. (iv) Usually , sporogenous cell directly behaves as the megaspore mother cell. How many of the above statements are wrong ?

Read the following four statements ( A -D ): (i) The outer wall of the pollen grain is pecto - cellulosic in nature. (ii) In pollen grain, the generative cell is bigger and contains abundant food reserve. (iii) In all angiosperm , pollen grains are always shed at the 2-celled stage. (iv) Usually , sporogenous cell directly behaves as the megaspore mother cell. How many of the above statements are wrong ?

Select the correct combination of true and false for the given statements about pollen grain cells. (1) The vegetative cell has an abundant food reserve. (2) The vegetative cell has large irregularly shaped nucleus. (3) The generative cell is small and is fixed in the cytoplasm of the vegetative cells. (4) The generative cell is spindle - shaped and has dense cytoplasm .

Select the correct combination of true and false for the given statements about pollen grain cells. (1) The vegetative cell has an abundant food reserve. (2) The vegetative cell has large irregularly shaped nucleus. (3) The generative cell is small and is fixed in the cytoplasm of the vegetative cells. (4) The generative cell is spindle - shaped and has dense cytoplasm .

Read statements (a-c) regarding pollen grains and select the option that has correct statements. a. The generative cell floats in the cytoplasm of the vegetative cell. b. Sporollenin is absent at germ pores. c. Pollen grain measures about 25-50 micrometer in diameter.

Read statements (a-c) regarding pollen grains and select the option that has correct statements. a. The generative cell floats in the cytoplasm of the vegetative cell. b. Sporollenin is absent at germ pores. c. Pollen grain measures about 25-50 micrometer in diameter.

When the pollen grain is mature it contains two cells, the vegetative cell and generative cell. The vegetative cell a. Is bigger b. Spindle shaped c. Has abundant food reserve d. Has large irregularly shaped nucleus.

When the pollen grain is mature it contians two cells, the vegetative cell and generative cell. The vegetative cell a. Is bigger b. Spindle shaped c. Has abundant food reserve d. Has large irregularly shaped nucleus.

Consider the following statements :- (i) Bacteria have rigid cell wall made up of cellulose (ii) Bacteria do not reproduce by sexual reproduction. (iii) Ammonia is oxidised to nitrite by the bacteria Nitrosomonas. (iv) Viruses are obligate parasites, cannot be living without host cell. Which of the statements are correct and incorrect ?