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• 12. When your cat hears the sound of you opening a can, it runs toward you. Which mechanism couldbe
• 13. ______ will develop into seeds, and ______ will develop into fruits.(A) Ovaries, carpels (B) Car
• 14. Which of the following antibodies can cross from mother to fetus?(A) IgM (B) IgD (C) IgG (D) IgA
• 15. There are 20 different amino acids. What makes one amino acid different from another?(A) Differe
• 16. When oxidative damage occurred in cell inside, which molecule in mitochondrion effluxes tocytoso
• 17. Regarding to prion hypothesis, what kind of abnormal protein structures in misfolded prionprotei
• 18. As a coenzyme, thiamin pyrophosphate can ______.(A) convert glucose to glucuronic acid(B) conver
• 19. Which of the following biological molecules is NOT derived from tyrosine?(A) melanin (B) seroton
• 20. Which amino acid residue must be tagged on by covalent linkage of ubiquitin when proteins aretar
• 21. The binding change mechanism of ATP synthesis predicts that each 360-degree rotation of the γsub
• 22. What is the net charge of the following peptide at pH 7.0?Tyr-Glu-Ser-Arg-Met-Thr-Asp-Asn-Tyr-Hi
• 23. Which of the following molecules can generate the highest yield of ATP in the process fromglycol
• 24. Which method is used to predict the amino acid sequence of tryptic fragments by bioinformaticapp
• 25. Which step of the mitochondrial electron transport chain does rotenone inhibit?(A) NADH → coenzy
• 26. Regarding the chemiosmotic theory of the respiratory chain, which statement is TRUE?(A) Oxidativ
• 27. Which of the following sets of amino acids are directly involved in the biosynthesis of creatine
• 28. Hydropathy plot is commonly used for ______.(A) predicting the quaternary structure of membrane
• 29. What substance(s) can affect the concentration of calcium ions inside the cell, an importantseco
• 30. Which statement is TRUE?(A) A higher Km value indicates a higher substrate specificity.(B) A hig
• 31. Which description about interaction between species is NOT true?(A) Predation: An individual of
• 32. Fungal cells can reproduce asexually by undergoing mitosis, followed by cytokinesis. Many fungic
• 33. Which is a TRUE statement concerning genetic variation?(A) It is created by the direct action of
• 34. Why do RNA viruses appear to have higher rates of mutation?(A) RNA viruses are more sensitive to
• 35. To prevent irreversible tragedies, the CDC urges the public not to use blood donation as a means
• 36. Which of the following characters is NOT a terrestrial adaptation of plants?(A) Waxy stomata to