Complementary proteins, such as corn and beans, are:
A) proteins that, when consumed together, provide you with all 20 amino acids.
B) two proteins that are combined to achieve quaternary structure.
C) two proteins—one polar and one nonpolar—that are combined to create a dipeptide.
D) sources of incomplete proteins that, when combined, contain all essential amino acids.
E) two nonpolar protein sources that are linked together by peptide bonds.
D) sources of incomplete proteins that, when combined, contain all essential amino acids.
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Which of the following best describes the hydrophilic component of cholesterol?
A. a hydroxyl group only B. a phosphate group only C. a phosphate group and a chemical group called choline D. a group of four planar rings and a hydroxyl group E. a single hydrocarbon tail
The exchange of chromosome regions between homologous chromosomes during meiosis is known as ____
a. irradiation damage b. crossing over c. chromosomal aberration d. fertilization e. spindle fiber formation
Stringent safety rules are not necessary for recombinant DNA research because it is a natural process that occurs in the absence of human intervention
Indicate whether the statement is true or false
Bacteria with small bunches of flagella emerging from the same site are said to be
A) Lophotrichous B) Monotrichous C) Amphitrichous D) Peritrichous E) Spirilla