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Question
Which among the following produce seeds?
Which among the following produce seeds?
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Solution
The correct option is D Gymnosperms
The correct option is D.
The explanation for the correct option:
- In gymnosperms, male and female gametophytes are found within sporangia on the sporophyte.
- Microsporangium pollen grains are carried through the air and come into contact with ovules on megasporophyll.
- After fertilization, the zygote develops into an embryo, while the ovule develops into a seed.
- The seeds aren't protected.
The explanation for the incorrect options:
Option A:
Reproduction in thallophytes is mostly asexual, and when it is sexual, it is isogamous, anisogamous, or oogamous.
Option B:
In bryophytes, the zygote creates a sporophyte but no seed is produced.
Option C:
There is no seed development in pteridophytes since the zygote creates sporophytes.
Final answer: Gymnosperms produce seeds.
Gymnosperms
The correct option is D.
The explanation for the correct option:
- In gymnosperms, male and female gametophytes are found within sporangia on the sporophyte.
- Microsporangium pollen grains are carried through the air and come into contact with ovules on megasporophyll.
- After fertilization, the zygote develops into an embryo, while the ovule develops into a seed.
- The seeds aren't protected.
The explanation for the incorrect options:
Option A:
Reproduction in thallophytes is mostly asexual, and when it is sexual, it is isogamous, anisogamous, or oogamous.
Option B:
In bryophytes, the zygote creates a sporophyte but no seed is produced.
Option C:
There is no seed development in pteridophytes since the zygote creates sporophytes.
Final answer: Gymnosperms produce seeds.
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