Testa and tegmen are present in :

• (A) flower
• (B) ovary
• (C) seed
• (D) seed coat.

Vegetative type of reproduction means :

• (A) plant portion is used as a means of propagation
• (B) seed is used as a means of propagation
• (C) flower is used as a means of propagation
• (D) None of the above.

Micropropagation is based on :

• (A) tissue culture
• (B) hybridization
• (C) microtomy
• (D) genetic control.

The entry of pollen tube into embryo sac through the integuments is termed as :

• (A) porogamy
• (B) chalazogamy
• (C) mesogamy
• (D) Both (a) and (b)