The primary structure of a protein is
A. the number of polypeptide chains in the molecule.
B. the hydrogen bonds between amino acids.
C. the folded, helical nature of the molecule.
D. represented by multiple polypeptide chains.
E. the sequence of amino acids in the polypeptide chain.
Answer: E
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A) ?are very difficult to destroy B) ?cause very serious infections C) ?cause infections that are difficult to diagnose D) ?destroy the cells they inhabit
This figure shows the muscles of the anterior neck. What muscle does number 1 indicate?
A. Sternothyroid B. Trapezius C. Sternocleidomastoid D. Geniohyoid E. Sternohyoid
The coronary sinus drains into the right atrium via the thebesian valve.
Answer the following statement true (T) or false (F)
Human somatic cells have ____________ pairs of chromosomes. Two chromosomes that carry the same genes are called a _______________ pair.
Fill in the blank(s) with correct word