STD 11 - 8. Cell the unit of life — NEET STD 11 Science — Question

Select the correct statement from the following

Which of the following statements are not true for microsporogenesis ?
(i) The centre of each microsporangium occupied by sporogenous tissue.
(ii) The cells of the sporogenous tissue undergo meiotic divisions to form microspore tetrads.
(iii) Each cell of the sporogenous tissue is capable of giving rise to a microspore tetrad.
(iv) Each microspore is a potential pollen or microspore mother cell.
(v) As the anthers mature and dehydrate, the microspores dissociate from each other and develop into pollen grains.
(vi) Inside each microsporangium several thousands of microspores or pollen grains are formed that are released with the dehiscence of anther.

Select the correct statement about biodiversity.

Bulliform cells in grass leaves show

Gibberellin is obtained from a

In maize, the fibrous roots develop from

Stem modified into green, flattened branches of unlimited growth for assimilatory function is

Applications, like bioremediation, processed food, therapeutics and diagnostics are related with