Biology - Single MCQs (Page 343)

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Q3421. Pollen grains in plants are produced in?...Q3422. Pollination by wind is called?...Q3423. Plants that grow under average temperature and moisture are called?...Q3424. One of the following is most suitable for study of mutations?...Q3425. Number of chromosomes in Down's syndrome is?...Q3426. Most common disease of poultry in India is?...Q3427. Radish is a?...Q3428. Organic Substances which, in very small amounts, control growth and development ...Q3429. Radioactivity is a phenomenon of the spontaneous emission of?...Q3430. Pigmentation of skin is due to?...