A) which are made upoflignin and suberin
B) that can withstand high temperature and strong acids and alkalies
C) which lack sporopollenin
D) through which sperms are released into the female gametophyte.
Correct Answer: C
Solution :
: The outer layer of a mature pollen grain is called exine (which is made up of sporopollenin) and inner to it is intine (made up ofpecto-cellulose). At certain places, exine remains thin and lacks sporopollenin. These areas are called germ pores. During pollen germination, pollen tube comes out through these pores.
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