Q. No.1. an artificial system based mainly on the androecium structure.
2. a natural system based on large number of natural affinities between flowering plants.
3. was a phylogenetic system based on evolutionary relationships.
4. was a chemotaxonomic system based on structure of homologous proteins.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
In numerical taxonomy:
I. computers are used and all the observable characters are taken into consideration.
II. hundreds of characters can be considered together and each character is given equal importance.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. both I and II are incorrect
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
| COLUMN I [Classification method] |
COLUMN II [Feature used] |
||
| A. | Artificial | P. | Evolutionary relationships |
| B. | Phylogenetic | Q. | Gross morphological characters |
| C. | Chemotaxonomy | R. | Chemical constituents of plants |
| D. | Cytotaxonomy | S. | Chromosome number, structure and behaviour |
Codes
| A | B | C | D | |
| 1. | P | Q | S | R |
| 2. | Q | P | R | S |
| 3. | R | S | P | Q |
| 4. | S | R | Q | P |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Fusion of two gametes which are dissimilar in size is termed as
| 1. Oogamy | 2. Isogamy |
| 3. Anisogamy | 4. Zoogamy |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Consider the following statements regarding green algae:
I. Pigments are located in definite plastids
II. Most have pyrenoids in chloroplasts
III. Cell wall has an inner layer of pectose and outer layer of cellulose
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Identify the incorrectly matched pair:
| Alga | Sexual reproduction | |
| I. | Ulothrix | Isogamous; non-flagellated gametes |
| II. | Spirogyra | Isogamous; flagellated gametes |
| III. | Udorina | Anisogamous |
| IV. | Fucus | Oogamous |
| 1. Only III | 2. I, II and III |
| 3. Only I and II | 4. Only III and IV |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
I: Algin is a hydrocolloid derived from brown algae
II: Carrageen is a hydrocolloid derived from green algae
III: Agar is a complex polysaccharide derived from red algae, Gelidium and Gracilaria
1. I is correct; II is incorrect; III is incorrect
2. I is incorrect; II is correct; III is correct
3. I is incorrect; II is correct; III is incorrect
4. I is correct; II is incorrect; III is correct
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Which of the following is not an example of an edible alga?
| 1. Porphyra | 2. Laminaria |
| 3. Sargassum | 4. Amanita |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
| COLUMN I | COLUMN II | |
| 1. | Main photosynthetic pigment | Chlorophyll a, b |
| 2. | Cell wall | Inner layer of cellulose and outer layer of pectose |
| 3. | Stored food | Starch |
| 4. | Flagellar number and insertion | 2-8. unequal. basal |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
1. Major pigments are chlorophyll a, c, fucoxanthin
2. Food is stored as complex carbohydrates which may be in the form of Laminarin or Mannitol
3. Vegetative cells have chitinous wall usually covered on the outside by a gelatinous coating of algin
4. Flagellar number and insertions are 2, unequal and lateral
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
© 2024 GoodEd Technologies Pvt. Ltd.