In some plants, the thalamus contributes to fruit formation. Such fruits are termed as:

1. False fruits

2. Aggregate fruits

3. True fruits

4. Parthenocarpic fruits

Which of the following is incorrect for wind-pollinated plants?

1. Well exposed stamens and stigma

2. Many ovules in each ovary

3. Flowers are small and not brightly colored

4. Pollen grains are light and non-sticky

Match Column I with Column II and select the correct option using the codes given below:

Codes:

स्तंभ II के साथ स्तंभ I का मिलान करें और नीचे दिए गए संकेतों का उपयोग करके सही विकल्प चुनें:

Codes:

The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which during pollination, brings genetically different types of pollen grains to stigma, is:

A typical angiosperm embryo sac at maturity is:
1. 7-nucleate and 7-celled
2. 8-nucleate and 8-celled
3. 8-nucleate and 7-celled
4. 7-nucleate and 8-celled

In some members of which of the following pairs of families, pollen grains retain their viability for months after release?

1. Poaceae; Solanaceae

2. Rosaceae; Leguminosae

3. Poaceae; Rosaceae

4. Poaceae; Leguminosae

The gynoecium consists of many free pistils in flowers of

(1) Papaver

(2) Michelia

(3) Aloe

(4) Tomato

The body of the ovule is fused within the funicle at :

The plant parts which consist of two generations, one within the other, are:

1. (a), (b) and (c)

2. (c) and (d)

3. (a) and (d) 

4. (a) only 

Shown below is a longitudinal section of the ovary, style, and stigma, showing the course followed by a pollen tube:

The parts marked as 4 and 5 are respectively: 

1. Ovary and Ovule 

2. Ovule and ovary 

3. Style and stigma 

4. Stigma and style