Answer:
B. Use the polymerase chain reaction (PCR) to make multiple copies of the DNA.
Explanation:
The scientist is to analyze a small sample of DNA, the most useful step to start this would be first the use of polymerase chain reaction to make various copies of that DNA sample. PCR is essential and quick process that gives a lot of copies within few hours. It uses the sample or target DNA, according to which the primers are designed. Taq polymerase and DNA polymerase are also used in the process, it consist of various cycles in which copies are made. There are three basic steps 'Denaturation', 'annealing', and 'extension'.
Enzymes break up the electrons of water to yield oxygen and hydrogen gas
Answer:
A and B
Explanation:
the main factors that result in violent volcanic eruption is low viscosity and gas content
rough ER-ER-to-golig transport vesicles- Golgi cisternae- secretory or transport vesicles-cell surface... answer: exocytosis
Well the answer is Phagcytosis but I see that is not an answer choice