Which of the following is correct about viroids?
1. They have free RNA without protein coat
2. They have DNA with protein coat
3. They have free DNA without protein coat
4. They have RNA with protein coat
Subtopic: Virus, Viroids & Prions |
63%
Level 2: 60%+
NEET - 2020
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Which of the following pairs is of unicellular algae?
| 1. | Gelidium and Gracilaria |
| 2. | Anabaena and Volvox |
| 3. | Chlorella and Spirulina |
| 4. | Laminaria and Sargassum |
Subtopic: Algae |
67%
Level 2: 60%+
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Subtopic: Pteridophytes |
61%
Level 2: 60%+
NEET - 2020
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Which of the following statements are true for the phylum-Chordata?
| (a) | In Urochordata, notochord extends from head to tail and it is present throughout their life |
| (b) | In Vertebrata, notochord is present during the embryonic period only |
| (c) | Central nervous system is dorsal and hollow |
| (d) | Chordata is divided into 3 subphyla : Hemichordata, Tunicata and Cephalochordata |
| 1. | (c) and (a) | 2. | (a) and (b) |
| 3. | (b) and (c) | 4. | (d) and (c) |
Subtopic: Phylum Chordata |
65%
Level 2: 60%+
NEET - 2020
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Bilaterally symmetrical and acoelomate animals are exemplified by:
| 1. | Platyhelminthes | 2. | Aschelminthes |
| 3. | Annelida | 4. | Ctenophora |
Subtopic: Phylum Platyhelminthes |
78%
Level 2: 60%+
NEET - 2020
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Match the following diseases with the causative organism and select the correct option.
| Column -I | Column- II |
| (a) Gregarious, polyphagous pest | (i) Asterias |
| (b) Adult with radial symmetry and larva with bilateral symmetry | (ii) Scorpion |
| (c) Book lungs | (iii) Ctenoplana |
| (d) Bioluminescence | (iv) Locusta |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (i) | (ii) | (iii) |
| 2. | (iii) | (ii) | (i) | (iv) |
| 3. | (ii) | (i) | (iii) | (iv) |
| 4. | (i) | (iii) | (ii) | (iv) |
Subtopic: Phylum Ctenophora | Phylum Arthropoda | Phylum Echinodermata |
80%
Level 1: 80%+
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Match the following columns and select the correct option.
| Column I | Column II | ||
| a. | 6 - 15 pairs of gill slits | (i) | Trygon |
| b. | Heterocercal caudal fin | (ii) | Cyclostomes |
| c. | Air bladder | (iii) | Chondrichthyes |
| d. | Poison sting | (iv) | Osteichthyes |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (iv) | (ii) | (iii) | (i) |
| 3. | (i) | (iv) | (iii) | (ii) |
| 4. | (ii) | (iii) | (iv) | (i) |
Subtopic: General Introduction: Vertebrates & Agnatha | Comparative study of Cartilagenous & Bony Fishes |
80%
Level 1: 80%+
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Subtopic: Flower & Parts of Flower: I | Flower & Parts of Flower |
54%
Level 3: 35%-60%
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The roots that originate from the base of the stem are:
1. Primary roots
2. Prop roots
3. Lateral roots
4. Fibrous roots
Subtopic: Morphology of Roots |
52%
Level 3: 35%-60%
NEET - 2020
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Subtopic: Flower & Parts of Flower: I | Flower & Parts of Flower |
63%
Level 2: 60%+
NEET - 2020
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