General Knowledge : General Science QUESTIONS AND ANSWERS :: part5 : 21 to 25
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :
21.Silk is produced by |
| egg of silkworm |
| pupa of silkworm |
| larva of silkworm |
| insect itself |
22.Penicillin is produced from |
| yeast |
| algae |
| mould |
| mushroom |
23.Which of the following activities is suppressed by the presence of auxins in plants ? |
| Growth of lateral buds |
| Cell division |
| Root intiation |
| Development of fleshy fruits |
24.The longest bone in the human body is |
| stirrup |
| back bone |
| thigh bone |
| gullet |
25.Which one of the following structures present in mammalian skin directly helps in keeping warm ? |
| Pigmented cells |
| Sweat glands |
| Lymph vessels |
| Blood capillaries |
More General Science QUESTIONS AND ANSWERS available in next pages
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