Q. Assertion : In pteridophytes, zygote produces a multicellular sporophyte.
Reason : Sporophyte is the dominant phase in life cycle of pteridophytes.

 1947  239 Plant Kingdom Report Error

Solution:

In pteridophytes, gametophytes bear male and female sex organs called antheridia and archegonia, respectively. Water is required for transfer of antherozoids - the male gametes are released from the antheridia, to the mouth of archegonium. Fusion of male gamete with the egg present in the archegonium results in the formation of zygote. Zygote thereafter produces a multicellular welldifferentiated sporophyte which is the dominant phase of the pteridophytes.