Read the following statements (I–IV) and answer the question which follows them.

I. In liverworts, mosses and ferns gametophytes are free-living
II. Gymnosperms and some ferns are heterosporous
III. The sporophytes in liverworts are more elaborate than that in mosses
IV. Both, Pinus and Marchantia are dioecious

How many of the above statements are correct?

One

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Two

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Three

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Four

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Solution

The correct option is B Two
Gametophytes of liverworts, mosses, and ferns are photosynthetic and independent of the sporophyte hence free-living.
Gymnosperms and some ferns produce two (male & female) dissimilar spores i.e., heterosporous.
The diploid sporophyte of moss is more elaborate than the liverworts.
Pinus is monoecious (having both the sexes on the same plant) while Marchantina is dioecious (male and female sexes are on different plant).

Only two statements (I and II) are correct.

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Similar questions

Read the following statements 1-5 and answer the question which follows them:

1. In liverworts, mosses and ferns gametophytes are free living.

2. Gymnosperms and some ferns are heterosporous.

3. Sexual reproduction in Fucus, Volvox and Albugo is oogamous.

4. The sporophyte in liverworts is more elaborate than that in mosses.

5. Both Pinus and Marchantia are dioecious.

Which of the above statements are correct?

Consider the following four statements:

I. The Sporophyte of liverworts lives longer than those of mosses;

II. Sphagnum is heterosporous;

III. The lifecycle in all seed bearing plants is diplontic;

IV. In pinus, male and female cones are borne on the same plants.

Which of the two statements are wrong?

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