After attaching to a bacterial cell, a bacteriophage typically
A. injects DNA into the cell.
B. transforms the cell into a virulent strain.
C. extracts DNA from the cell.
D. extracts protein from the cell.
E. injects protein into the cell.
Answer: A
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laboratory with increasing amounts of the chemical for one week and then measure their viability. What is the experimental variable for this experiment?
a. chemical X b. fish c. river d. farming e. water
Which of the following is NOT produced in
the synthesis (light-independent) reactions? a. NADPH b. phosphoglyceric acid (PGA) c. phosphoglyceraldehyde (PGAL) d. glucose e. ribulose bisphosphate
The process by which body tissues and organs form is
a. cleavage b. differentiation c. morphogenesis d. metamorphosis e. ovulation
Birds produce species-specific songs
Indicate whether the statement is true or false