Who discovered transformation?

a. Gregor Mendel
b. Fred Griffith
c. Elie L. Wollman
d. Joshua Lederberg


Ans: b. Fred Griffith

Biology & Microbiology

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A fruit could best be described as:

A. developing from a flower B. development from the ovule C. an endosperm extension D. part of the gametophyte generation E. None of these is true

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Once activated, what do plasma cells do to overcome infection?

What will be an ideal response?

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Diagram and label the internal structure of a chloroplast. Briefly describe the function of each structure you labeled. What will be an ideal response?

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Which are the first to attack cancer cells and virus-infected cells?

A. cytotoxic T-cells B. suppressor T-cells C. delayed hypersensitivity T-cells D. helper T-cells E. natural killer (NK) cells

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