Answer is Methadone, Heroin and Opium
Answer:
tbh i think it is A
Explanation:
because they cant breath while choking, cant cough while choking cause they already are and people blink over 2 million times a day.
Answer:
Polymerase chain reaction, or PCR, is a technique to make many copies of a specific DNA region in vitro (in a test tube rather than an organism).
PCR relies on a thermostable DNA polymerase, Taq polymerase, and requires DNA primers designed specifically for the DNA region of interest.
In PCR, the reaction is repeatedly cycled through a series of temperature changes, which allow many copies of the target region to be produced.
PCR has many research and practical applications. It is routinely used in DNA cloning, medical diagnostics, and forensic analysis of DNA.
PCR:
Polymerase chain reaction (PCR) is a common laboratory technique used to make many copies (millions or billions!) of a particular region of DNA. This DNA region can be anything the experimenter is interested in. For example, it might be a gene whose function a researcher wants to understand, or a genetic marker used by forensic scientists to match crime scene DNA with suspects.
Typically, the goal of PCR is to make enough of the target DNA region that it can be analyzed or used in some other way. For instance, DNA amplified by PCR may be sent for sequencing, visualized by gel electrophoresis, or cloned into a plasmid for further experiments.
PCR is used in many areas of biology and medicine, including molecular biology research, medical diagnostics, and even some branches of ecology.
To make sure a patient is fit enough to safely endure anesthesia and surgery, a surgeon would typically require a pre-operative physical examination. A physical examination, a heart evaluation, and blood testing are typically included of this evaluation.
<h3>What does the patient need to do to get ready for surgery?</h3>
Preoperative procedures are carried out based on the anticipated operation's type, the results of the diagnostic workup, and the results of the preoperative evaluation.
Preoperative evaluation is essentially a clinical risk assessment where a patient's health is assessed to see whether they are fit to receive the anesthesia required for a planned procedure. Three to four weeks before to the surgery is the ideal window of time for this evaluation to occur.
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