General Knowledge - Biology
Exercise :: Biology - Section 1
| 25. |
O2 released in the process of photosynthesis comes from |
Answer: Option B
Explanation:
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| 26. |
Placenta is the structure formed |
| A. |
by the union of foetal and uterine tissue | | B. |
by foetus only | | C. |
by fusion of germ layers | | D. |
None of these |
Answer: Option A
Explanation:
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| 27. |
Plants hormone that induces cell division is |
| A. |
auxins | | B. |
gibberellins | | C. |
kinins | | D. |
domins |
Answer: Option C
Explanation:
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| 28. |
Neurospora is used as genetic material because |
| A. |
it has short life cycle of 10 days | | B. |
the product of single meiosis can be easily analysed | | C. |
meiotic products are linearly arranged in the form of ordered tetrads | | D. |
is a diploid fungus |
Answer: Option A
Explanation:
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| 29. |
Phloem is a tissue found in |
| A. |
reproductive organs of animals | | B. |
plants | | C. |
insects | | D. |
mammals |
Answer: Option B
Explanation:
|
| 30. |
N2 content is kept constant in the biosphere due to |
| A. |
N2 fixation | | B. |
industrial pollution | | C. |
nitrogen cycle | | D. |
absorption of N2 |
Answer: Option C
Explanation:
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