| 1. | Larger nucleoli are present in dividing cells. |
| 2. | It is a membrane-bound structure. |
| 3. | It takes part in spindle formation. |
| 4. | It is a site for active ribosomal RNA synthesis. |
| 1. | Polysome | 2. | Polyhedral bodies |
| 3. | Plastidome | 4. | Nucleosome |
| Column-I | Column-II | |
| 1. | Lampbrush | Diplotene bivalents chromosomes |
| 2. | Allosomes | Sex chromosomes |
| 3. | Submetacentric | L-shaped chromosomes |
| 4. | Polytene | Oocytes of amphibians chromosomes |
Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?
1. Ribosome
2. Chloroplast
3. Mitochondrion
4. Lysosome
Which of the following components provides sticky character to the bacterial cell?
| 1. | Nuclear membrane | 2. | Plasma membrane |
| 3. | Glycocalyx | 4. | Cell Wall |
Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
1. BacillusSelect the wrong statement:
| 1. | Bacterial cell wall is made up of peptidoglycan |
| 2. | Pili and fimbriae are mainly involved in the motility of bacterial cells |
| 3. | Cyanobacteria lack flagellated cells |
| 4. | Mycoplasma is a wall-less microorganism |