11. The only method of reproduction in blue-green algae is
12. In which of the following species of bacteria, the cell wall contains cellulose?
13. The first step in conjugation, in bacteria is achieved by complementary surface molecules, the male component of which is formed by
14. The most popular and outstanding natural system of classification is that of
15. Plants which grow on saline soils are
16. In which of the following the entire flower has been called a nectry?
17. Litmus, an important and widely used dye in chemical industries as an acid-base indicator, is obtained from
18. Sexual reproduction in algae that takes place through fusion of two similar size gametes is called
19. According to Hutchinson's system, in the monocotyledons, the most primitive order is
20. Spongy Tissue' is a serious disorder hampering the export of mango variety. It is
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