- 1(current)
Q. No.Identify the organism that shows the following characteristics.
(a) Zygotic meiosis
(b) Causes red tide of the sea
(c) Mesokaryon organisation
(d) Whirling whips
1. Noctiluca
2. Gonyaulax
3. Melosira
4. Navicula
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRed tides are due to the rapid multiplication of
1. Cyanobacteria
2. Chlamydomonas
3. Gonyaulax
4. Diatoms
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRed tides in the sea are because of
(1) Red dinoflagellates
(2) Geladium
(3) Red Chrysophytes
(4) Red algae
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology'Red tide' is caused by
(1) Gonyaulax
(2) Ceratium
(3) Triceratium
(4) All of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDinoflagellates- do not possess which feature?
(1) Marine and photosynthetic
(2) Variety in colors
(3) Cell wall with silica
(4) Two flagella
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDinoflagellates can not appear
(1) Black
(2) White
(3) More than one option is correct
(4) Pink
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyOrganisms responsible for causing ‘red tide’ are also
characterized by
1. Presence of stiff cellulosic plates.
2. Obligate saprophyte.
3. Presence of two longitudinal flagella.
4. Filamentous body made up of trichomes.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following property belongs to Dinoflagellates?
(1) Loose cellulose plates in cell wall
(2) The outer surface has more loosening of cell wall than inner
(3) Rapid multiplication
(4) Not harmful for others
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is not associated with red tides
(1) Harmful for marine organisms
(2) Gonyaulax
(3) Aquatic habitat
(4) Color is due to pigment in the cell of Dinoflagellates
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch each item in Column I with one in Column II and select your answer from the codes given below:
| Column I | Column II | ||
| A. | Diatoms | a. | Protein-rich layer of pellicle |
| B. | Dinoflagellates | b. | Cell wall embedded with silica |
| C. | Euglenoids | c. | Spores with true walls |
| D. | Slime moulds | d. | Cellulose plates in the cell wall |
Codes:
| A | B | C | D | |
| 1. | b | a | c | d |
| 2. | b | d | a | c |
| 3. | b | c | a | d |
| 4. | b | a | d | c |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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