1 |
To what category of molecules do enzymes belong? |
- A. Carbohydrates
- B. Lipids
- C. Nucleic acids
- D. Proteins
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2 |
Who published important work on plants classification? |
- A. John Ray
- B. Andrea Caesalpino
- C. Tournefort
- D. Agustus Rivinu
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3 |
Which branch of biology deals with the study forms and structure of lihving organism. |
- A. Anatomy
- B. Morphology
- C. Histology
- D. Physiology
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4 |
There are_______________chromosomes in radish. |
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5 |
A species is a group of natural population which can: |
- A. Interbreed and produce offsprings
- B. Interbreed in nature and produce offspring
- C. Interbreed and produce fertile offspring
- D. Interbreed in nature and produce fertile offspring
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6 |
The exchange of parts of non-sister chromatids is called: |
- A. Chiasmata
- B. Linkage
- C. Crossing over
- D. None of these
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7 |
When a plant was kept in darkness for many days, many days, its leaves turned yellow. Why? |
- A. Leaves could not get oxygen and so there was no photosynthesis
- B. Leaves could not get light and so there was no respiration
- C. Leaves could not get oxygen and so there was no respiration
- D. Leaves could not get light and so there was no photosynthesis
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8 |
Which mosquito spread malaria in birds. |
- A. Anopheles
- B. Culex
- C. Anopheles & Culex
- D. None of these
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9 |
In which stage of the cell cycle, the cell is preparing enzymes for chromosome duplication. |
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10 |
In 2010 the population of Humans in Pakistanis. |
- A. 173.5 million persons
- B. 17 million persons
- C. 19.5 milion persons
- D. 10.07 million persons
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