ARD NABARD MAINS 2020 Quiz 11 : Chapter- Biotechnology June 25, 2020June 10, 2021 CHAPTER: BIOTECHNOLOGY Please enter your email: 1. A dividing and undifferentiated mass of cells is called Callus Embryo Explant Zygote None of the above 2. Advancement in genetic engineering has been possible due to the discovery of Oncogenes Transposons Restriction endonuclease Exonucleases None of the above 3. Agarose extracted from sea weeds finds use in Gel electrophoresis Spectrophotometry Tissue culture PCR None of the above 4. Continuous addition of sugars in ‘fed batch’ fermentation is done to Degrade sewage Produce methane Obtain antibiotics Purify enzymes None of the above 5. Which purine is found in RNA? Guanine Cytosine Thymine Uracil None of the above 6. DNA fingerprinting was discovered by James Watson Alec Jeffreys Frederick Fanger Hargobind Khorana None of the above 7. DNA is found in Chromosomes Plastids Mitochondria All of the above None of the above 8. Dolly, The first cloned mammal, was produced by Parthenogenesis Artificial fertilization Replacement of zygote nucleus by somatic nucleus in vitro fertilization None of the above 9. Embryo culture is used for Establishing suspension culture Recovery of inter specific hybrids Somatic hybridization Haploid production None of the above 10. First artificial gene was synthesized by Nirenberg Mendel Morgan Khorana None of the above Loading …