MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the number of chromosomes present in an oocyte? |
| A. | 46 |
| B. | 23 |
| C. | 21 |
| D. | 48 |
| Answer» C. 21 | |
| 2. |
What are the disc shaped structures located on the sides of the centromere? |
| A. | Kinetochores |
| B. | Satellite cells |
| C. | Flagella |
| D. | Ribosomes |
| Answer» B. Satellite cells | |
| 3. |
A few chromosomes have non-staining constrictions at a constant location. What are these constrictions called? |
| A. | Cilia |
| B. | Flagella |
| C. | Satellite |
| D. | Kinetochore |
| Answer» D. Kinetochore | |
| 4. |
The nucleolus is the site of rRNA synthesis. True or false? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which type of chromosome has its centromere at its tip? |
| A. | Acrocentric chromosome |
| B. | Telocentric chromosome |
| C. | Sub metacentric chromosome |
| D. | Metacentric chromosome |
| Answer» C. Sub metacentric chromosome | |
| 6. |
Which form of chromosome has two equal arms? |
| A. | Telocentric chromosome |
| B. | Acrocentric chromosome |
| C. | Sub metacentric chromosome |
| D. | Metacentric chromosome |
| Answer» E. | |
| 7. |
Which is the primary constriction for every visible chromosome? |
| A. | Centromere |
| B. | Ribosomes |
| C. | Kinetochores |
| D. | Histones |
| Answer» B. Ribosomes | |
| 8. |
Which of these organelles are not membrane bound? |
| A. | Mitochondria |
| B. | Endoplasmic reticulum |
| C. | Nucleolus |
| D. | Lysosome |
| Answer» D. Lysosome | |
| 9. |
What is the site of rRNA synthesis within a cell? |
| A. | Chromatin |
| B. | Nucleolus |
| C. | Perinuclear space |
| D. | Centrosomes |
| Answer» C. Perinuclear space | |
| 10. |
Which of these is an important constituent of the nuclear matrix? |
| A. | Chromatin |
| B. | Ribosomes |
| C. | Mitochondria |
| D. | Centrosomes |
| Answer» B. Ribosomes | |
| 11. |
Which of these cells lack a nucleus? |
| A. | Thrombocytes in humans |
| B. | Lymphocytes of primates |
| C. | Sieve tube cells of vascular plants |
| D. | Epithelial cells |
| Answer» D. Epithelial cells | |
| 12. |
What is the space between the two membranes of the nuclear envelope known as? |
| A. | Reticular space |
| B. | Intra membrane space |
| C. | Perinuclear space |
| D. | Somatic space |
| Answer» D. Somatic space | |
| 13. |
Which scientist coined the term chromatin? |
| A. | Robert Koch |
| B. | Louis Pasteur |
| C. | Robert Brown |
| D. | Alexander Fleming |
| Answer» E. | |