Which of the following is NOT correct about plasmids?
A. Plasmids are small, circular DNA molecules that are separate from the much larger bacterial chromosome
B. Plasmids can easily incorporate foreign DNA and are readily taken up by bacterial cells
C. Plasmids act as DNA carriers that move genes from one cell to another
d) all of the above are correct
Ans: d) all of the above are correct
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Although an orphan, Ian is also Jewish. If both he and Sylvia were carriers, what would be their chances of having a Tay-Sach's child?
a. 3 out of 4 (75%) b. 2 out of 4 (50%) c. 1 out of 4 (25%) d. Not enough information is given to make this type of prediction.
How do you think our overpopulation problem will be solved? Support your answer with specific examples or ideas.
What will be an ideal response?
The box numbered 2 represents which process?
A) cycling of energy
B) decomposers acting on all parts of the system
C) cycling of matter
D) gases in the atmosphere that can block sunlight
The correlation between X and Y holding at least one other variable constant for only X or only Y is known as:
A. unconditional correlation. B. linear regression. C. semi-partial correlation. D. partial correlation.