Which of the following are typically used as vectors?
a. plasmids
b. viruses
c. insulins
d. both plasmids and viruses
D
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The accompanying figure shows the electron transport chain. Which of the following is the combination of substances that is initially added to the chain?
A) oxygen, carbon dioxide, and water B) NAD+, FAD, and electrons C) NADH, FADH2, and protons D) NADH, FADH2, and O2 E) oxygen and protons
Refer to the paragraph on the Krings et al. paper. Why did the researchers wear protective clothing and note so emphatically that they did so?
A) They needed to be certain there were no ancient pathogens on the sample that modern humans hadn't been exposed to. B) They needed to be sure not to harm the precious sample with oils from skin or moisture from their breath. C) They needed to minimize the chance of introducing their own mitochondrial DNA to the sample. D) They needed to follow careful, standardized laboratory procedures required by law and document their compliance.
In animals, nitrogenous wastes are produced mostly from the catabolism of _____
A) starch and cellulose B) triglycerides and steroids C) proteins and nucleic acids D) phospholipids and glycolipids
The average size of a protein in a human cell is about 430 amino acids, yet the average gene in the human genome is 27,000 nucleotide pairs long. Explain
What will be an ideal response?