Prolonged exposure to __________ can lead to hypothermia
Fill in the blank(s) with the appropriate word(s).
cold
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When an organism dies, its muscles remain in a contracted state termed rigor mortis for a brief period of time. Which of the following most directly contributes to this phenomenon?
A. no ATP to move cross-bridges B. no ATP to break cross-bridges between thick and thin filaments C. no calcium to bind to troponin D. no oxygen supplied to muscle E. no energy for the synthesis of actin and myosin
Amino acids in proteins are linked to one another by peptide bonds between the
A. methyl group of one amino acid and a side group of another amino acid. B. carbon atoms of two adjacent amino acids. C. carboxyl group of one amino acid and the amino group of another. D. nitrogen atom and carboxyl ion.
Glycerol forms the backbone of ____
a. triglycerides only b. polysaccharides and nucleic acids c. nucleic acids only d. polypeptides only e. triglycerides and phospholipids
Why is the polymerase chain reaction (PCR) so useful for DNA fingerprinting?
A) It can produce millions of copies from tiny amounts of DNA. B) It can be used to compare DNA from different individuals. C) It can identify the complete sequence of a gene. D) It can allow scientists to visualize the DNA of specific individuals.