Question
Write two differences between spermatogenesis and spermiogenesis.
| Spermatogenesis | Spermiogenesis |
| 1. This is second stage of pre-sperm formation | 1. This is the stage after pre-sperm formation. |
| 2. In this, primary spermatocytes are formed from spermatogonia. | 2. In this, mature hoploid sperms are formed from spermatids. |
| 3. It participates in the growth of spermatogenic cells. | 3. In this process the transfer of cells takes place. |
| 4. Many processes are involved in this. | 4. This is the last stage of sperm formation. |
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| S.No. | Name of the human disease | Name of the causal bacteria/virus | Specific organ or its part affected |
| 1. | Typhoid | Salmonella typhi | a |
| 2. | Common cold | b | c |
| 3. | Pneumonia | Streptococcus pneumoniae | d |