Identify the incorrect statement:
| 1. | Numerical Taxonomy is based on all observable characteristics. |
| 2. | More weightage is given to reproductive characters and all other characters are given equal importance in numerical taxonomy. |
| 3. | Cytotaxonomy is based on cytological information like chromosome number, structure, behaviour |
| 4. | Chemotaxonomy uses the chemical constituents of the plant |
Consider the following adaptations seen in plants:
| I. | Lack of cuticle |
| II. | Presence of stomata for exchange of gases |
| III. | Evolution of leaf |
| IV. | Dominance of sporophyte |
| V. | Structural support of vascular tissue |
Which of the above adaptations would be required in a plant if it has to be successfully adapted to life on land?
1. All but I
2. All but I and III
3. I, II, III and IV
4. All
Non flowering plants are included under
(1) cryptogamae
(2) phanerogamae
(3) angiosperms
(4) Both a and b
The main reason of failure of artificial classification was
| 1. | It considered only vegetative characters |
| 2. | It gave more weightage to vegetative characters |
| 3. | It gave more weightage to reproductive characters |
| 4. | It gave equal weightage to both vegetative and reproductive characters |
Why are reproductive characters given more weightage during advanced classification?
1. Vegetative characters are more or less constant over the generation
2. Reproductive characters are less constant over the generation
3. Vegetative characters are easy to get affected by environment
4. Reproductive characters are more or less constant over the generation
Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:
1. xerophytes
2. mesophytes
3. epiphytes
4. hydrophyte
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