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Semi-Technical Description of Liliaceae

Which of the ...

Question

Which of the following are found in all seed plants?

A

Sex organs in gametopytes

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B

Flagellated male gametes

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C

Retention of female gametophyte by sporophytic

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D

Roots, stem and leaves

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Solution

The correct option is C
Retention of female gametophyte by sporophytic

In both Gymnosperms and Angiosperms, the female gametophyte is retained by the sporophyte.

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Q. [A]: The ratio between the number of male gametes in male gametophyte to number of female gametes in female gametophyte is 1 : 2
[R]: A female gametophyte has more gametes than male gametophyte

Q. Very short answer type :
Arrange the following in chronological order in the life-cycle of an angiosperm . (a) flower, (b) sporophytic plant, (c) seed, (d) fertilization, (e) megaspore-microspore, (f) endosperm-embryo, (g) megaspore mother cell-microspore mother cell, (h) female gametophyte with egg-male gametophyte with sperm nuclei.

Q. Read the following five statements ( A to E ) and select the option with all correct statements.

(A) Mosses and Lichens are the first organisms to colonize bare rock.
(B) Selaginella is a homosporous pteridophyte.
(C) Coralloid roots in Cycas have VAM.
(D) The main plant body in bryophytes is gametophytic whereas in pteridophytes it is sporophytic.
(E) In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.

Q. The haploid gametophytic generation in flowering plants is represented by for male gametophyte and for female gametophyte.

Q. ________ and ________ are the male gametophyte and female gametophyte of the flowering plants, respectively.

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Semi-Technical Description of Liliaceae

Standard XII Biology

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