Morphology of Flowering Plants

When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as

1. vexillary
2. imbricate
3. twisted
4. valvate.

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 edible underground stem is

1. carrot
2. groundnut
3. sweet potato
4. potato.

An aggregate fruit is one which develops from

1. multicarpellary syncarpous gynoecium
2. multicarpellary apocarpous gynoecium
3. complete inflorescence
4. multicarpellary superior ovary.

Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, Withania, potato, onion, aloe and tulip how many plants have hypogynous flower?

1. Fifteen
2. Eighteen
3. Six
4. Ten

In China rose the flowers are

1. zygomorphic, hypogynous with imbricate aestivation
2. zygomorphic, epigynous with twisted aestivation
3. actinomorphic, hypogynous with twisted aestivation
4. actinomorphic, epigynous with valvate aestivation

Seed coat is not thin, membranous in

1. groundnut
2. gram
3. maize
4. coconut.

Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicum, sweet pea, Petunia, Indigofera, mustard, soybean, tobacco and groundnut, how many plants have corolla with valvate aestivation?

1. Six
2. Seven
3. Eight
4. Five

Inflorescence is racemose in

1. brinjal
2. tulip
3. aloe
4. soybean.

In a cymose inflorescence the main axis

1. has unlimited growth
2. bears a solitary flower
3. has unlimited growth but lateral branches end in flowers
4. terminates in a flower.