13. What event would indicate that a virus undergoes the lysogenic cycle? A.
The virus uses projections to attach to specific cells before injecting nucleic acid.
B.
The virus stays dormant for a period of time before starting to reproduce.
C.
The virus reproduces quickly causing symptoms to arise shortly after infection.
D. The virus uses a cell's endoplasmic reticulum to fold proteins used in the capsid.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

✿   this landform has a high elevation and a high relief

✿   this landform is a mountain

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.