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Question

In pteridophytes
(a) Spores are always of two kinds
(b) Vascular tissues are present
(c) The sporophyte is parasitic over the photosynthetic gametophyte
(d) The development of zygotes into young embryos takes place within the female gametophytes
  1. (a), (b) and (d) are correct
  2. Only (d) is incorrect
  3. (a) and (c) are incorrect
  4. All are correct except (b)

A
Only (d) is incorrect
B
(a), (b) and (d) are correct
C
(a) and (c) are incorrect
D
All are correct except (b)
Solution
Verified by Toppr

The sporophyte is the dominant stage in the life cycle of Pteridophytes. It is not parasitic over the gametophyte. All the other statements are correct.
Hence the correct option is A.

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Similar Questions
Q1
In pteridophytes
(a) Spores are always of two kinds
(b) Vascular tissues are present
(c) The sporophyte is parasitic over the photosynthetic gametophyte
(d) The development of zygotes into young embryos takes place within the female gametophytes
View Solution
Q2
Read statement a to d and find out how many is/are incorrect statement(s).
(a) In majority of the pteridophytes, all the spores are of similar kinds.
(b) Genera like Selaginella and Salvinia produce two kind of spore.
(c) The development of the zygote in the young embryos take place within the female gametophytes. This event is a precursor to the seed habit.
(d) Azolla is an aquatic fern that is used as biofertilizer due to the presence of nitrogen fixing cyanobacteria.
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Q3
Select correct statements for non-vascular archegoniates.
A. Independent sporophyte and gametophyte
B. Dependent sporophyte
C. Multicellular independent gametophyte
D. Many neck canal cells in female sex organ
E. Homosporous and mitospores are formed
View Solution
Q4
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.

View Solution
Q5
Read the following five statements (A - E) and answer as asked next to them.
(A) In Equisetum the female gametophyte is retained on the parent sporophyte
(B) In Ginkgo male gametophyte is not independent
(C) The sporophyte in Riccia is more developed than that in Polytrichum
(D) Sexual reproduction in Volvox is isogamous
(E) The spores of slime molds lack cell walls
How many of the above statements are correct ?
View Solution