Sexual Reproduction in Flowering Plants Question 75
75. Entry of pollen tube through micropyle is
[1990]
(a) Chalazogamy
(b) Mesogamy
(c) Porogamy
(d) Pseudogamy
Show Answer
Answer : c
Hints & Solutions
(c) In porogamy the tip of pollen tube enters the micropyle, pushes through the nucellar tissue & finally pierces the egg-apparatus end of the embryo sac. If pollen tube enters through chalazal side it is called chalazogamy & if it enters laterally it is called mesogamy.
