Answer:
This statement is false.
Explanation:
Everything has the potential to cause cancer but it is only a matter of how much is consumed. One would have to exceed many limits in order to be a "major cause" of cancer.
Толстой использует черно-белое.
As population continues to grow and demands for resources increase, understanding the nexus of Food-Energy-Water Systems (FEWS) is vital to ensure the reliability and equity of access to these crucial resources. FEWS are tightly intertwined and characterized by complex tradeoffs that are not yet well understood. Understanding the demands for and tradeoffs amongst FEW resources is particularly challenging in semi-arid regions, where increasing population trends are likely to continue, and water shortage poses risks to agriculture and energy industries.
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.
