Twenty different types of amino acids are used to make proteins
a. True
b. False
Indicate whether the statement is true or false
True
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What do you know about specifically inhibiting one class of receptors? What other information is related to the question?
What will be an ideal response?
Each of the following provides evidence in support of the primary role of RNA in the evolution of life EXCEPT:
A. Some RNA molecules are catalytic. B. ATP (energy currency of the cell) is a ribonucleotide. C. RNA can regulate gene expression. D. RNA is less chemically stable than DNA. E. RNA catalyzes peptide bond formation during protein synthesis.
The biosphere is so large that, unlike the case of the more simple ecosystems, it is impossible to disturb the balances that exist in this ecosystem
Indicate whether the statement is true or false
Answer the following questions with reference to the bones listed below. Answers may be used more than once or not at all.
A. This bone transfers force from the arms to the axial skeleton. B. This bone is not part of the appendicular skeleton. C. A cartilage disk separates units of this bone. D. This bone connects to the femur. E. This is a toe bone. F.