Rooting Medium

Q. In which ratio is auxin and cytokinin present in the rooting medium

1. Cytokinin and Auxin are in present equal propotion
2. Auxin is more and cytokinin is less
3. Cytokinin is more and auxin is less
4. only Auxin

Q.

Is kinetin a cytokinin?

Q. Choose the right from the following.
(i) In light, hormone auxin, helps the cells to grow longer in plants.
(ii) Plant hormone gibberellins help in growth of a stem.
(iii) Cytokinin inhibits cell division.
(iv) Abscisic acid promotes growth in plants.

1. (I) and (iii) are correct.
2. (ii) and (iv) are correct.
3. (i) and (ii) are correct.
4. (i) and (iv) are correct.

Q. In which ratio is auxin and cytokinin present in the rooting medium

1. Cytokinin and Auxin are in present equal propotion
2. Auxin is more and cytokinin is less
3. Cytokinin is more and auxin is less
4. only Auxin

Q. The bioassay of auxin is

1. Culture of fungus
2. Avena curvature test
3. Callus formation
4. Seed dormancy

Q. Cytokinin synthesis is maximum in

1. Roots
2. Leaves
3. Shoot tip
4. Fruit

Q. Zeatin is a .............

1. Vitamin
2. Growth promotor
3. None of the above
4. Growth inhibitor

Q.

Nodule formation is stimulated by two phytohormones

1. Auxin and Abscesic acid

2. Auxin and Cytokinin

3. Cytokinin and Gibberellins

4. None of these

Q. What would happen if you forget to add cytokinin to the culture medium?

1. Callus will not develop shoot buds
2. Callus will stop differentiating
3. Callus will not develop root buds
4. Both A and B

Q. The hormone that is used to keep flowers fresh is ......

1. Auxin
2. Gibberellic acid
3. Cytokinin
4. Ethylene

Q. .................. hormone is applied to cuttings to induce root initiation in horticulture.

1. Auxin
2. Gibberelin
3. Cytokinin
4. Ethylene

Q. In which ratio is auxin and cytokinin present in the rooting medium

1. Cytokinin and Auxin are in present equal propotion
2. Auxin is more and cytokinin is less
3. Cytokinin is more and auxin is less
4. only Auxin

Q. The amino acid tryptophan is the precursor for the synthesis of

1. Melatonin and Serotonin
2. Estrogen and Progestrone
3. Cortisol and Cortisone
4. Thyroxine and Trudothyronine