| 1 |
Cancer is caused mainly by mutation in. |
- A. somatic cells
- B. Sex cells
- C. Malignant cells
- D. Reproductive cells
|
| 2 |
The prophase stage in which the chromosomes become visible, shorten and thick. |
- A. Leptotene
- B. Zygotene
- C. Pachytene
- D. Diphotene
|
| 3 |
First essential phenomenon of meiosis i.e pairing of homologous Chromosomes called synapsis starts in |
- A. Leptotene
- B. Zygotene
- C. Pachytene
- D. Diplotene
|
| 4 |
The basic difference betweenn spermatogenesis and oogenesis is that : |
- A. During spermatogenesis two more polar bodies are produced
- B. The mature ovum is haploid while the sperm is 1n
- C. Spermatogenesis involves mitosis and meiosis, but oogenesis involves meiosis only
- D. In oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced
|
| 5 |
The autosomal non disjunction in man in which 21st pair of chromosome fail to segregate resulting in gametes with 24 chromosomes is. |
- A. Down's syndrome
- B. Klinfilter syndrome
- C. Turner's syndrome
- D. Jacob's syndrome
|
| 6 |
Seperation of homologous chromosomes occur during.. |
- A. Anaphase
- B. Prophase
- C. Metaphase
- D. Telephase
|
| 7 |
In turner syndrome the affected person have set of chromosomes. |
- A. XO
- B. XXY
- C. XYY
- D. XXO
|
| 8 |
During cell division , the nuclear division is called |
- A. Cytokinesis
- B. Karyokinesis
- C. Endomitosis
- D. Plasmolysis
|
| 9 |
Which tumor is delocalized or has branches other than site of orgin. |
- A. Benign
- B. Malignant
- C. Both
- D. Apoptosis
|
| 10 |
Chromatin network is visible during |
- A. Interphase
- B. Prophase
- C. Anaphase
- D. Metaphase
|