Modified aerial stem with the branching of unlimited growth as the photosynthetic structure is

1. Flattened in Opuntia and Euphorbia

2. Fleshy and cylindrical in Euphorbia

3. Cylindrical in Opuntia

4. Cylindrical in Euphorbia and Opuntia

Pinnately compound leaves have all the following features except

1.  leaflets are attached to rachis or its branches

2.  Possess a bud in the leaf axil

3.  Leaflets attached at the tip of the petiole

4.  Stipules may be present at the base of the rachis

Select the correct match

1.  Lily      -      Epiphyllous stamen

2.  Argemone   -   Axile placentation

3.  Tomato    -    Apocarpous ovary

4.  China rose    -     Staminode present 

Which among the following is a characteristic of pea and bean?

1.  Monadelphous stamens

2.  Marginal placentation

3.  Twisted aestivation

4.  Endospermic seed 

Which of the following zone of the root has thin cell wall, dense cytoplasm and large nucleus?

1.  Region of maturation

2.  Region of elongation

3.  Region of root hair

4.  Region of meristematic cells

If gynoecium is situated in the centre and other floral parts are located on the rim of the thalamus almost at the same level, then the flower is said to be

1.  Perigynous 

2.  Epigynous

3.  Hypogynous

4.  Protogynous

Floral formula of Solanum nigrum represents

1.  Epitepalous condition

2.  Epipetalous androecium

3.  Polyserpalous calyx 

4.  Tricarpellary gynoecium 

Which of the given figures represents the aestivation of corolla in Gulmohur and Cassia?

1.  

2.  

3.  

4.  

The cells proximal to the merismatic zone in root tip represents

1.  Zone of cell elongation

2.  Zone of deacceleration

3.  Zone of differentiation

4.  Zone of maturation

Scar present on seed coat through which the developing seeds were attached to fruit is called 

1.  Micropyle

2.  Hilum

3.  Funicle

4.  Stalk