The F plasmid is involved in which of the following processes?
A) conjugation
B) transduction
C) transposition
D) transformation
Answer: A) conjugation
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Consider the following reaction at equilibrium: What would be the effect of adding additional H2CO3?
A) It would drive the equilibrium dynamics to the right. B) It would drive the equilibrium dynamics to the left. C) Nothing would happen, because the reactants and products are in equilibrium. D) The amounts of CO2 and H2O would decrease.
Which of the following is a method of introducing genes into plants?
a. using Ti plasmid and Rhizobium radiobacter bacteria to infect cells with the new genes b. creating transgenic plant cells in cultures to produce a callus which then grows into a transgenic plant c. crossing plants with desirable traits with other plants with the same trait for multiple generations d. both using Ti plasmid and Rhizobium radiobacter bacteria to infect cells AND creating transgenic plant cells to produce a callus that grows into a transgenic plant. e. both using Ti plasmid and Rhizobium radiobacter bacteria to infect cells AND crossing plants with desirable traits with other plants with the same trait for multiple generations.
The microtubule-organizing center found in animal cells is an identifiable structure present during all phases of the cell cycle. Specifically, it is known as the _____
A) microtubulere B) centrosome C) centromere D) kinetochore
Scientists have identified and named
a. all living species b. all living and extinct species c. all extinct species d. a fraction of all species