REPRODUCTION IN FLOWERING PLANTS XII CBSE KVFW-1

Haustoria are found in which of the following structure of the embryo sac?

• a)       Synergids
• b)      Egg apparatus
• c)       Antipodal cell
• Polar cell

Synergids are

• a)       4n
• b)      3n
• c)       2n
• d)      n

What is double fertilization in angiosperms?

• A. The process of two sperms fertilizing one egg
• B. The process of one sperm fertilizing two eggs
• C. The process of one sperm fertilizing one egg and another sperm fertilizing the polar nuclei
• D. The process of two sperms fertilizing two eggs

Which of the following is not a component of double fertilization?

• A. Eclosion
• B. Syngamy
• C. Zygote formation
• D. Endosperm formation

Spiny/sticky pollen grains and large attractive coloured flowers are associated with

• Hydrophily
• Entomophily
• Ornithophily
• Anemophily

16.      Which one of the following is not found in a female gametophyte of an angiosperm?

• Germ pore
• Synergids
• Filiform apparatus
• central cell

Banana is a ………….

• fruit
• true fruit
• parthenocarpic fruit
• all of the above

Perisperm is the remains of-

• Archegonium
• Integument
• Endosperm
• Nucellus

In one form of reproduction in flowering plants , the egg is formed with 2n chromosomes and develops without ever being fertilized. Or the cells of the ovule (2n) develop into an embryo . The phenomena described here is i) Polyembryony

• I &ii
• I &iii
• ii & iii
• I & iv

The fruits that are not derived from the ovary, but from another part of the flower are known as

• Multiple Fruits
• False Fruits
• Parthenocarpic Fruits
• Aggregate Fruits