Biology 2015 E.C - 2023 G.C 2014 E.C - 2022 G.C Chemistry 2015 E.C - 2023 G.C Civics and Ethical Education 2015 E.C - 2023 G.C English 2015 E.C - 2023 G.C Geography 2015 E.C - 2023 G.C History 2015 E.C - 2023 G.C Physics 2015 E.C - 2023 G.C Biology - Grade 12 -2023 G.C Grade 12 students can now access their exam results by visiting the Educational Assessment and Examination Services (EAES) website. Previous123456789101112131415161718192021Next 30. Consider the following model of DNA replication.Which one of the following is true about A, B and C? A and B are identical with each other but not with C. C is not identical with A and B. B and C are not identical with each other. A, B and C are identical with each other. 31. What is the central role of tRNA in translation? Carrying genetic information from DNA in the nucleus to ribosomes Recognizing the codon of mRNA and bring the correct amino acid to the ribosomes Acting as a template for converting a genetic code into amino acid sequence Assembling the amino acid into a polypeptide chain 32. In a metabolic pathway, the end-product inhibition occurs when the last product of the pathway inhibits the last enzymatic reaction. first product of the pathway inhibits the last enzymatic reaction. first product of the pathway inhibits the third enzyme of the reaction last product of the pathway inhibits the first enzymatic reaction. 33. A student measured the diameter of onion epidermal cells at a magnification of 100X using a field of view adjusted to 2mm by stage micrometer. What would be the diameter of individual cells if 8 cells fit into the field of view of the microscope at 100X magnification? 250μm 200μm 150μm 300μm 34. The following graph shows the rate of reaction of catalase enzyme at a constant temperature and at different substrate concentration (in %).From the above graph, we can conclude that catalase was functional with its minimum turnover rate from substrate concentration of 0.4 to 0.5. 0.1 to 0.2. 0.5 to 0.6. 0.3 to 0.4. Previous123456789101112131415161718192021Next We have provided these questions from previous years grade 12 Ethiopian Secondary School Leaving Certificate Examination (ESSLCE) exams with the sole purpose of assisting students in their studies and preparations for upcoming exams. Please be aware that these questions are not indicative of future exam content. Good luck with your studies!