What makes each amino acid unique?
A. the central carbon
B. the R group
C. the carboxyl group
D. the carbon ring
E. the amino group
Answer: B
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In Frederick Griffith's experiment, live R cells and dead S cells were injected into mice, causing fatal pneumonia. Neither live R cells nor dead S cells alone cause pneumonia, so Griffith concluded that _____
1.DNA is the genetic material 2.some, but not all, R cells cause pneumonia 3.DNA encoding the ability to form capsules was released from dead S cells and picked up by R cells 4.hereditary information of unknown identity transformed R cells into S cells 5.DNA controls the synthesis of specific products
In this figure of teleost internal anatomy, which structure, A, B, C, or D, is the swim bladder?
1.A
2.B
3.C
4.D
Methicillin is related to penicillin, which was isolated from the bread mold Penicillium. Based on this, which of the following can you conclude is different between S. aureus and Penicillium?
a. The composition of their plasma membrane b. Their type of genetic material c. The structure of their organelles d. The composition of their cell wall e. The enzymes in glycolysis
The flight of a blimp best illustrates
What will be an ideal response?