Primers are used in both PCR and in DNA sequencing. What is the purpose of the primers?
A. to separate the DNA template strands.
B. to provide a 3'- OH for DNA polymerase to build a new DNA strand.
C. to terminate synthesis of the growing DNA strand.
D. to separate various-sized DNA products.
E. to add nucleotides to a growing DNA strand.
B.
to provide a 3'- OH for DNA polymerase to build a new DNA strand.
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The packaging mechanism of T4 DNA involves cutting of DNA from
A) linear genetic elements. B) circular genetic elements. C) DNA concatemers. D) its host cells.
As a result of the transition from daytime to nighttime, how will the relative concentrations of glyceraldehyde 3-phosphate (G3P) and ribulose 1,5-bisphosphate (RuBP) change in C3 plants?
A. The concentrations of G3P and RuBP would both decrease. B. G3P would decrease and RuBP would increase. C. The concentrations of G3P and RuBP would remain the same. D. G3P would increase and RuBP would decrease.
A particular reaction has a negative delta G. However, this reaction takes many years to proceed in the absence of enzyme. Why is this the case?
A. A certain amount of activation energy is required for the reaction to proceed B. This reaction does not proceed spontaneously C. The initial free energy of the reactants is much less than the final free energy of the products D. This reaction does not obey the second law of thermodynamics
Why is it necessary to take an interdisciplinary approach to studying biology?
A. Research methods used to solve many biological questions often require a number of different types of approaches and the expertise of a variety of scientists. B. Interdisciplinary approaches are required to answer all scientific questions since all disciplines borrow knowledge from each. C. An interdisciplinary approach is the only way we can further our biological knowledge.