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Q.15 Which one of the following immunoglobulins crosses the human placenta?(A) IgA(B) IgE(C) IgG(D) IgM IgG is the immunoglobulin that crosses the human placenta, providing passive immunity to the fetus. This […]

Q.14 Which one of the following hormones is a tyrosine derivative?(A) Epinephrine(B) Estradiol(C) Progesterone(D) Testosterone Epinephrine is the correct answer (A). It serves as the sole tyrosine-derived hormone among the […]

Q.13 Which one of the following statements about polyploidy is correct?(A) Autopolyploids are derived from a single species(B) Autopolyploids are derived from two different species(C) Allopolyploids are derived from a […]

Q.12 The correct hierarchy of taxa in the Linnaean classification of eukaryotes is(A) kingdom, class, phylum, order, family, genus(B) kingdom, order, class, phylum, family, genus(C) kingdom, phylum, order, family, class, […]

Q.11 Match the terminology in Group I with the stimulus in Group II that generatesgrowth response of plantsGroup I                        […]

Q.10 The number of significant figures in a reported measurement of 0.00361 is(A) 3(B) 4(C) 5(D) 6 The number of significant figures in 0.00361 is 3. Leading zeros before non-zero […]

Q.9 Which one of the following has a catalytic RNA?(A) Ribonuclease H(B) Ribozyme(C) RNA polymerase I(D) RNA polymerase II The correct answer is (B) Ribozyme. Ribozyme is the RNA molecule […]

Q.8 Which one of the following hormones promotes fruit ripening?(A) Abscisic acid(B) Auxin(C) Ethylene(D) Gibberellin Ethylene is the plant hormone that promotes fruit ripening, making it the correct answer for […]

Q.7 Which color of light excites a natural GFP to emit green fluorescence?(A) Blue(B) Green(C) Infrared(D) Red Blue light excites natural GFP to emit green fluorescence. The correct answer is (A) […]

Q.6 Which one of the following is present in a bacterial cell?(A) 28S rRNA(B) 70S ribosome(C) Chitinous cell wall(D) Histones Bacterial cells, as prokaryotes, feature distinct components like 70S ribosomes […]