Which one of the following statements is correct?

1. The seed in grasses is not endospermic

2. Mango is a parthenocarpic fruit

3. A proteinaceous aleurone layer is present in maize grain

4. A sterile pistil is called a staminode

An example of an edible underground stem is

1. carrot

2. groundnut

3. sweet potato

4. potato

Placentation in tomato and lemon is 

1. parietal

2. free central

3. marginal

4. axile

Cymose inflorescence is present in

1. Solanum

2. Sesbania

3. Trifolium

4. Brassica

The correct floral formula of chilli is

1. 

2. 

3. 

4. 

Flowers are zygomorphic in

1. Gulmohar

2. tomato

3. datura

4. mustard

A drupe develops in

1. wheat

2. pea

3. tomato

4. mango

The ovary is half inferior in flowers of

1. cucumber

2. cotton

3. guava

4. peach

In a unilocular ovary with a single ovule, the placentation is

1. marginal

2. basal

3. free central

4. axile

Keel is characteristic of the flowers of

1. gulmohur

2. Cassia

3. Calotropis

4. bean