The lateral branches originate from the basal and underground portion of the main stem, grow horizontally beneath the soil and then come out obliquely upwards giving rise to leafy shoots in:

1. Opuntia and Euphorbia	2. Mint and Jasmine
3. Pistia and Eichhornia	4. Banana and Pineapple

Usually the anther in an angiosperm has:
1. two lobes and each lobe has two pollen sacs
2. two lobes and each lobe has one pollen sac
3. four lobes and each lobe has one pollen sac
4. four lobes and each lobe has two pollen sacs

Beginning from the root cap, the correct chronological sequence of the various region of a root tip is:
1. Region of meristematic activity → Region of elongation → Region of maturation
2. Region of maturation→ Region of elongation → Region of meristematic activity
3. Region of meristematic activity → Region of maturation → Region of elongation
4. Region of elongation → Region of maturation → Region of meristematic activity

A sterile stamen is called as:

Stamens attached to the perianth as in the flowers of lily are called as:

The condition of stamens in China rose is described as:
1. Polyandrous
2. Monoadelphous
3. Diadelphous
4. Polyadelphous

Variation in the length of filaments within a flower is seen in:

Both stem tendrils and stem thorns:
1. help the plant to climb
2. develop from axillary buds
3. protect plants from browsing animals
4. can be used in vegetative propagation

After fertilization, the ovules develop into _____ and ovary matures into ______.

At the root tip, the cells that are responsible for the growth of the root in length are located in the region that is:
1. distal to the region of meristematic activity
2. proximal to the region of meristematic activity
3. proximal to the region of maturation
4. distal to the region of elongation