CSIR JRF/NET Life Science Exam
June 2017 (I) Model Question Paper 3/5
(Practice Questions with Answer Key)
(1). During glycogen metabolism, the glycogen in the cell is first breakdown to glucose-1-phosphate by the enzyme glycogen phosphorylase. This reaction is a______
a. Glycolysis reaction
b. Hydrolysis reaction
c. Phosphorolysis reaction
d. Glucolysis reaction
(2). Which of the following genes is activated as ‘oncogenes’ in some human tumors?
(3). If the frequency of males affected with an X- linked recessive condition in a human population is 0.10 (one in ten) what will be the expected frequency of affected females?
(4). What are the assumptions of Hardy-Weinberg equilibrium?
a. Small population size, random mating no selection, no migration, no mutation
b. Large population size, random mating, no selection, no migration, no mutation
c. Large population size, random mating, heterozygotes survive the best, no migration, no mutation
d. Large population size, random mating, no selection, migrants enter form other populations, no mutation
(5). The receptor for which of the following hormone is a transcription factor?