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Concept of Seed

Which of the ...

Question

Which of the following is true regarding homospory and heterospory?

A

Homospory: one kind of spore is produced, typically resulting in a bisexual gametophyte.

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B

Heterospory: two types of spores develop into separate male and female gametophytes

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C

Both A and B are correct

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D

Both A and B are incorrect

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Solution

The correct option is A Both A and B are correct
Homospory: one kind of spore is produced, typically resulting in a bisexual gametophyte.
Heterospory: two types of spores develop into separate male and female gametophytes.
So, the correct answer is 'Both A and B are correct'.

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Similar questions

Q. State whether the following statements are true or false.
Heterospory refers to the production of two different kinds of spores, one of which gives rise to male gametophyte and the other-female gametophyte

Q. 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

Q. Which statements are true about mosses?

I. Most of the mosses are monoecious
II. Male and the female are found on different thalli
III. Spores are produced by mitosis
IV. The predominant stage of the life cycle of a moss is the gametophyte

Q. A plant body first undergoes asexual reproduction by forming spore and then the spore develop into gametophytes which produce gametes. Later these gametes fuse to form zygote. The zygote once again develops into a sporophyte. In which subdivision can we find this type of alternation of generation?

Q. Read statement

^{'} a

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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