which of the following gas discovered by Scheele?
which of the following gas discovered by Scheele?
A. chlorine
B. hydrogen
C. oxygen
D. carbon dioxide
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Primary structure of proteins determines__________?
Primary structure of proteins determines__________?
A. Number of polypeptide chains involved
B. Bending of polypeptide chains
C. Amino acid sequence
D. Coiling of polypeptide chainsWhat is the mode of transmission of Hepatitis virus?
What is the mode of transmission of Hepatitis virus?
A. Aerosol
B. Parentral (via blood)
C. Skin penetration
D. UnknownNumber of spiracles present in the thorax of cockroach is___________?
Number of spiracles present in the thorax of cockroach is___________?
A. 2
B. 3
C. 5
D. 4Ribosomes + m-RNA?
Ribosomes + m-RNA?
A. Polysome
B. Phlosome
C. Polosome
D. None of theseWhich of the following does not show quaternary structure____________?
Which of the following does not show quaternary structure____________?
A. Haemoglobin
B. Pepsin
C. Fibrin
D. InsulinWhich of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.
Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.
A. Binding sites of actin get attached to the myosin head.
B. Troponin uncovers the actin binding sites.
C. Tropomyosin gets removed from the binding sites of actin filaments.
D. Ca2+ goes back inside sarcoplasmic reticulum.