Which of the following components of PCR ensures amplification of the target DNA sequence only, despite the presence of many other DNA sequences?
A. High temperatures
B. Polymerases
C. dNTPs
D. Primers
Answer: D
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Would the evidence suggest that mitochondria or chloroplasts were the first to evolve through endosymbiosis? What will be an ideal response?
The axial skeleton of vertebrates consists of the bones of the limbs, the pectoral girdle, and most of the
pelvic girdle. ______________ Indicate whether the statement is true or false.
Which term refers to the upper angle between a stem and attached leaf?
a. internode b. axillary bud c. node d. lateral bud
You've made a hot drink by dissolving a teaspoon of instant coffee and a teaspoon of sugar in a cup of hot water. Which of the following statements is true?
A) You've just prepared an aqueous solution. B) The water is the solute portion of the drink. C) The instant coffee is basic and the water is acidic so they mix well. D) The instant coffee and sugar dissolve because they have no charged regions to repel the partial positive and partial negative regions of the water molecules.