Auxin was isolated by

1.F. W. Went

2.Charles Darwin

3.Francis Darwin

4.F. Skoog

This picture suggests that

1. Tip of the coleorrhiza is the source of Auxin

2. Tip of coleoptile is the source of Auxin

3. Base of coleoptile is the source of Auxin

4. Base of coleorrhiza is the source of Auxin

The application of synthetic plant hormone like IAA, IBA and NAA are best described as:-

(1) prevent early fruit fall before harvesting and is used to produce parthenocarpic fruit

(2) prevent early fruit fall only

(3) to produce both seed less fruits and fruits with seeds

(4) to produce larger fruit

Auxin means

1.To escape

2.To slow

3.To grow

4.To fasten

One of the synthetic auxin is 

1. NAA

2. IAA

3. GA

4. IBA

Internodal segments of tobacco stems, the callus is actually

1.An undifferentiated cell

2.A mass of differentiated cell

3.A mass of undifferentiated cell

4.A differentiated cell

In the living plant body, the PGRs can be broadly divided into two groups. This classification is actually based on

1.Function

2.Structure

3.Metabolism

4.Kinetin

……...is the site of transmittable influence that caused the bending of the entire……..

1.Coleorrhiza

2.Coleoptile

3.Auxin

4.Scutellum

The Discovery of PGRs

1.Four discovery were accidental one was with a planned experiment

2.Three discovery were accidental Two were with a planned experiment

3.Two discovery were accidental Three were with a planned experiment

4.All five we're accidental

Here arrows indicate

1.Source of Auxin

2.Direction of bending

3.Direction of light

4.Direction of cap removal