Growth Harmone_MCQ_Advance Level

Growth Harmone - Advance

Dear Readers,

Growth hormone (GH) or somatotropin, also known as human growth hormones (hGH or HGH) in its human form, is a peptide hormone that stimulates growth, cell reproduction, and cell regeneration in humans and other animals.

Q1. Which of the following technique is employed for the separation and identification of phytohormones

•  Polarizing microscopy
•  Autoradiography
•  Gas chromatography
•  Cell fractionation

Gas chromatography

Q2. Seedless fruits can be obtained by treating the unpollinated ovaries with

•  Sucrose solution
•  Hormones
•  Pure lanolin
•  Colchicine

Hormones

Q3. Evergreen trees remain green throughout the year on account of

•  Absence of leaf fall
•  Leaves falling in small members at intervals
•  Supply of the moisture throughout the year
•  Cold climate

Leaves falling in small members at intervals

Q4. Whose technique is employed for the extraction and elimination of hormones

•  Beck
•  Beer
•  Garner
•  Allard

Garner

Q5. Phytohormones are used in

•  Parthenocarpy
•  Grafting
•  Ripening of fruits
•  All of the above

All of the above

Q6. In tissue culture experiments in tobacco callus, it was seen that when the culture medium contains 2 ppm of IAA and 2 ppm of kinetin an undifferentiated mass of callus is produced. If the ratio of kinetin to IAA is increased

•  The callus size would increase by repeated cell divisions
•  Root initiation would take place
•  Shoot initiation would occur
•  The callus would die

Shoot initiation would occur

Q7. Correct sequence of different stages of development is

•  Fruiting->Flowering->Juvenility->Germination
•  Germination->Juvenility->Flowering->Fruiting
•  Flowering->Fruiting->Juvenility->Germination
•  Juvenility->Flowering->Fruiting->Germination

Germination->Juvenility->Flowering->Fruiting

Q8. Give below are assertion and reason. Point out-
if both are true with reason being correct explanation (a),
both true but reason not correct explanation (b),
assertion true but reason wrong (c),
and both wrong (d).
Assertion. Plants also have hormones called phytohormones.
Reason. They increase the rate of reactions and thus allways accelerate growth and other related changes

•  A
•  B
•  C
•  D

C

Q9. Induction of rooting in stem cutting would be most beneficial in

•  Marchantia
•  Wheat
•  Cuscuta
•  Bougainevillea

Bougainevillea