Tag: iit jam biotechnology previous year paper PYQ

Q.40 Which of the given statement(s) about synthetic oligonucleotides is/are correct?(A) Chemical synthesis extends the DNA chain from 3 ́→5 ́end(B) They can be utilized for site–directed mutagenesis(C) Chemical synthesis […]

Q.39 Hyperventilation (breathing rapidly and deeply) causes which of the followingevent(s) in the arterial blood?(A) Decrease in CO2 concentration(B) Decrease in proton concentration(C) Increase in pH(D) Increase in O2 concentration […]

Q.38 Different segments of a photosynthetic filamentous alga are exposed to differentwavelengths of light as shown below. After a period of time, bacteria known tomigrate towards high oxygen concentration, is […]

Q.37 Which of the following option(s) represent(s) the evolutionary relationshipbetween the bird and bat wings as structures for flying?(A) analogous(B) convergence(C) divergence(D) homologous Bird and bat wings represent analogous structures […]

Q.36 Which of the following is/are essential feature(s) of high–fidelity DNA polymerasesused in polymerase chain reaction?(A) 5 ́→3 ́ exonuclease activity(B) Endonuclease activity(C) 3 ́→5 ́ exonuclease activity(D) Optimum temperature […]

Q.35 Which of the following statement(s) is/are correct for the following compound?(A) It can have a maximum of four stereoisomers(B) It can have a maximum of two stereoisomers(C) It is […]

Q.34 Which of the following compound(s) is/are aromatic? The aromatic compounds in this question are options (B) and (D); options (A) and (C) are non‑aromatic.​​ Introduction Aromaticity questions are common in competitive exams, and understanding which cyclic […]

Q.33 A species of fish living in a lake are separated by drying up of the lake into twoseparate lakes. After several hundreds of years of separation, the two groups […]

Q.32 The characteristic morphological change(s) in cells undergoing apoptosis is/are(A) formation of blebs on cell surface(B) swelling and bursting of cells(C) collapse of the cytoskeleton(D) condensation and fragmentation of nuclear […]

Q.31 Which of the following statement(s) is/are correct about telophase?(A) Daughter chromosomes are yet to form(B) New nuclear envelop starts to reassemble(C) Division of cytoplasm begins(D) Nuclear membrane disappears Telophase […]