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Q. Which one of the following amino acids is catalyzed by activated macrophages to produce reactive nitrogen species?               (A) Arginine         (B) ...

Q. Determine the correctness or otherwise of the following Assertion and the Reason Assertion: Ab initio gene finding algorithms that predict protein coding genes in eukaryotic genomes are not completely accurate. Reason: Eukaryotic splice sites are difficult to predict. (A) Both and ...

Q. Which of the following cytokines are endogenous pyrogens? P. Tumor necrosis factor-a Q. Interleukin-1 R. Transforming growth factor-β S. Interleukin-10 (A) P and Q only (B) P and R only (C) R and S only (D) Q and S only Ans: P and Q only

Which of the following statements, support the view that elaborate sexual reproductive pro- cess appeared much later in the organic evolution?i. Lower groups of organisms have simpler body design.ii. Asexual reproduction is common in lower groups.iii. Asexual reproduction is common in higher ...

Q. In leguminous plants, both the rhizobium genes and the plant genes influence nodulation and nitrogen fixation. Which one of the following functions is NOT encoded by the host plant genes? (A) Production of inducers that modify rhizobial cell wall (B) Production of flavonoid inducers ...

The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be Option 1 : 20Option 2 : 10Option 3 : 40Option 4 : 15

Q. Genomic DNA isolated from a bacterium was digested with a restriction enzyme that recognizes a 6-base pair (bp) sequence. Assuming random distribution of bases, the average length (in bp) of the fragments generated is           Ans: 4096 to 4096

Which of the following is a post-fertilization event in flowering plants? Option 1 : Transfer of pollen grainsOption 2 : Embryo developmentOption 3 : Formation of flowerOption 4 : Formation of pollen grains

Q. A single stem cell undergoes 10 asymmetric cell divisions. The number of stem cells at the end is    Ans: 1 to 1

There are various types of reproduction. The type of reproduction adopted by an organism depends on Option 1 : The organism’s habitat, physiology and genetic makeup.Option 2 : The habitat and morphology of the organism.Option 3 : Morphology of the organism.Option 4 : Morphology and physiology ...