Keel is characteristic of the flowers of

1. gulmohur

2. Cassia

3. Calotropis

4. bean

The technical term used for the androecium in a flower of China rose (Hibiscus rosa sinensis) is

1. monadelphous

2. diadelphous

3. polyandrous

4. polyadelphous

The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons?

1. Cotyledon

2. Endosperm

3. Aleurone layer

4. Plumule

The floral formula   is that of

1. tulip

2. soybean

3. sunn hemp

4. tobacco

A fruit developed from hypanthodium inflorescence is called

(1) hesperidium

(2) sorosis 

(3) syconus 

(4) caryopsis

An example of a seed with endosperm, perisperm and caruncle is

(1) cotton

(2) coffee

(3) lily

(4) castor

Dry indehiscent single-seeded fruit formed from bicarpellary syncarpous inferior ovary is

(1) caryopsis

(2) cypsela

(3) berry

(4) cremocarp

The fleshy receptacle of synconous of fig encloses a number of

(1) achenes

(2) samaras

(3) berries

(4) mericarps

The length of different internodes in a culm of sugarcane is variable because of

1. shoot apical meristem

2. position of axillary buds

3. size of leaf lamina at the node below each internode

4. intercalary meristem

Replum is present in the ovary of flower of

(1) lemon

(2) mustard

(3) sunflower

(4) pea