Semantics is the study of meaning. Meaning itself is a broad area of study. It can refer to lexical meaning or structural meaning (the meaning related to the structure of sentence). I will try to give the example of structural meaning. A sentence consists of pragmatic information and semantic information.
The polymerase chain reaction (PCR) is a technology in molecular biology used to amplify a single copy or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.n the second step, the temperature is lowered and the two DNA strands become templates for DNA polymerase to selectively amplify the target DNA. The selectivity of PCR results from the use of primers that are complementary to the DNA region targeted for amplification under specific thermal cycling conditions.
Weâve all heard about it but what does CPR actually stand for? CPR stands for C ardio P ulmonary R esuscitation and is one of the fundamental techniques used in first aid to resuscitate.It is also one of the most important techniques to get right which is why we put so much importance into our CPR Training courses and CPR refresher courses.eâve all heard about it but what does CPR actually stand for? CPR stands for C ardio P ulmonary R esuscitation and is one of the fundamental techniques used in first aid to resuscitate.