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Assertion : Megaspore mother cell undergoes meiotic division.
Reason : All four megaspres form female gametophyte.
Reason : All four megaspres form female gametophyte.
Assertion
Water is not required for fertilization process in ferns.
Reason
Malic acid of Archegonial neck attracts antherozoids.
Which of the following correctly represents the type of life cycle patterns from the options given?
Which one of the following is considered important in the development of seed habit?
Consider the following four statements and find out which of them are wrong.
(A) The sporophyte in liverworts is more elaborate than that in mosses.
(B) Salvinia is heterosporous.
(C) The life-cycle of all seed-bearing plants is diplontic.
(D) In pinus, male and female cones are borne on different trees.
(A) The sporophyte in liverworts is more elaborate than that in mosses.
(B) Salvinia is heterosporous.
(C) The life-cycle of all seed-bearing plants is diplontic.
(D) In pinus, male and female cones are borne on different trees.
Bryophytes have a life cycle, with alternation of a haploid, sexual generation with a diploid, asexual generation. Unlike vascular plants, in bryophytes, the _______ is usually longer or of similar duration as the _______.
Which of the following remained unchanged for last many million years?
Which of the following statement is not a difference between monocots and dicots?
Largest ovules and male gametes are found in:
Give information about reproduction of gymnosperms?