An improved variety of transgenic basmati rice
Options
(a) does not require chemical fertilizers and growth hormones (b) gives high yield and is rich in vitamin A (c) is completely resistant to all insect […]
Consider the following four statements and select the option which includes all the correct ones only. (1) Single cell Spirulina can produce large quantities of food rich in protein, minerals, vitamins etc. (2) Body weight-wise […]
Which one of the following is a case of wrong matching
Options
(a) Somatic hybridization – Fusion of two diverse cells (b) Vector DNA -Site for t-RNA synthesis (c) Micropropagation – in vitro […]
Tissue culture technique can produce infinite number of new plants from a small parental tissue. The economic importance of the technique is in raising
Options
(a) Variants through picking up somaclonal variations (b) […]
In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called :
Options
(a) cross-hybridisation among the selected parents (b) evaluation […]
Consider the following four measures (A-D) that could be taken to successfully grow chickpea in an area where bacteri blight disease is common A)Spray with Bordeaux mixture B)Control of the insect vector of the disease […]
Which one of the following pairs of organisms are exotic species introduced in India ?
Options
(a) Lantana camara, water hyacinth (b) Water hyacinth, Prosopis cinereria (c) Nile perch, Ficus religiosa (d) Ficus […]
Wind pollinated flowers are
Options
(a) small, brightly coloured, producing large number of pollen grains (b) small, producing large number of dry pollen grains (c) large producing abundant nectar and pollen (d) small, […]
Which one of the following statements is wrong?
Options
(a) When pollen is shed at two-celled stage, doubled fertiliztion does not take place (b) Vegetative cell is larger thean generative cell (c) Pollen […]
Which one of the following statements is correct?
Options
(a) Geitonogamy involves the pollen and stigma of flowers of different plants (b) Clestogamous flowers are always autogamous (c) Xenogamy occurs only by wind […]
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