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MCQs 1: Who discovered ribosomes__________________?

Palade Altmann Cowdry Garner
Answer Explanation

MCQs 2: What is the function of Gorge bodies__________________?

Photosynthesis Protein synthesis Segregation of the products of sunthesis RNA synthesis
Answer Explanation

MCQs 3: The smallest cell organelle so far is_____________________?

Peroxisome Spherosome Ribosome Lysosome
Answer Explanation

MCQs 4: The maximum magnification possible within electron microscope is____________________?

2000 times 4000 times 400,000 times 200,000 times
Answer Explanation

MCQs 5: The outer most part of plant cell is____________________?

Plasma membrane Epidermis Nuclear membrane Cellulose cell wall
Answer Explanation

MCQs 6: The membrane which surrounds the___________________?

Nucleus Chloroplast Vacuole Cutoplasm
Answer Explanation

MCQs 7: In cereals limiting amino acids are________________?

Threonine Lysine Methionine a and b
Answer Explanation

MCQs 8: In maize source of high lysine is___________________?

Opaque 2 Proline Gang as African tall
Answer Explanation

MCQs 9: The term useful heterosis was first used by__________________?

Meredith and Bridge (1972) Richey (1914) Jenkins (1935) Hull (1950)
Answer Explanation

MCQs 10: Top cross was first suggested by__________________?

Simmonds (1979) East (1908) Davenport (1908) Davis (1927)
Answer Explanation

MCQs 11: Heterosis can be fully exploited in the form of_____________________?

Composites Hybrids Multi lines Synthetics
Answer Explanation

MCQs 12: Heterosis can be fixed by___________________?

Apomixis Polyploidy Asexual reproduction All the above
Answer Explanation

MCQs 13: Out breeding leads to reproduction in____________________?

Heterozygosity Homozygosity Population mean None of the above
Answer Explanation

MCQs 14: Colchicum () is extracted from__________________?

Seed Bulb Fruit Flower
Answer Explanation

MCQs 15: A nullisomic individual is represented by________________?

2n-1 2n+1 2n-2 2n+2
Answer Explanation

MCQs 16: The change in chromosome number which involves the entire set of genome is known as______________?

Anenploidy Euploidy Trisomy all the above
Answer Explanation

MCQs 17: In primary trisomic the extra chromosome is__________________?

Isochromosome Traits located chromosome Normal chromosome None of the above
Answer Explanation

MCQs 18: Stadler, first used X-rays for induction of mutation in_________________?

Oat Maize Wheat Barley
Answer Explanation

MCQs 19: A mutation which kills 50% of the individual that carry the mutation is known as_________________?

Lethal mutation Sub lethal mutation Vital mutation Sub-vital mutation
Answer Explanation

MCQs 20: In Incern, resistance to spotted aphid is associated with__________________?

low sinigen in leaves High saponin in leaves High DIMBOA in leaves High silicant content
Answer Explanation

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