Short Answer TypeDifferentiate between the following:
syngamy and triple fusion
|
Syngamy |
Triple fusion. |
|
1. Fusion of male gamete with female gamete. |
1. Fusion of male gamete with secondary nucleus. |
|
2. Results in the formation of diploid zygote. |
2. Results in the formation of triploid primary endosperm. |
Long Answer Type
Match The Following| A. Chlamydomonas | (i) Moss |
| B. Cycas | (ii) Pteridophyte |
| C. Selaginella | (iii) Algae |
| D. Selaginella | (iv) Gymnosperm |
Long Answer Type
Multiple Choice QuestionsFusion of two gametes which are dissimilar in size is termed as
Oogamy
Isogamy
Anisogamy
Zoogamy
Holdfast, stipe and frond are found in
Rhodophyceae
Chlorophyceae
Phaeophyceae
All of the above
A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. Identify the group to which it belongs to
Pteridophytes
Gymnosperms
Monocots
Bryophytes
Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is
Monocots
Dicots
Pteridophytes
Gymnosperms
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