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Questions and Answers
What is the terminology for a period of time during which a set of traffic movements receive a green signal in Australia and New Zealand?
What is the terminology for a period of time during which a set of traffic movements receive a green signal in Australia and New Zealand?
Phase
Who developed the first automated system for controlling traffic signals?
Who developed the first automated system for controlling traffic signals?
Leonard Casciato and Josef Kates
What is the concept equivalent to a 'phase' in the UK and USA?
What is the concept equivalent to a 'phase' in the UK and USA?
Stage
What is the electrical output from the traffic signal controller called in Australia and New Zealand?
What is the electrical output from the traffic signal controller called in Australia and New Zealand?
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What system also uses the signal group terminology?
What system also uses the signal group terminology?
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Who invented the polymerase chain reaction (PCR) and in what year?
Who invented the polymerase chain reaction (PCR) and in what year?
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What is the significance of PCR in genetic testing and research?
What is the significance of PCR in genetic testing and research?
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How are DNA sequences amplified using PCR?
How are DNA sequences amplified using PCR?
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In what fields is PCR commonly used as a technique?
In what fields is PCR commonly used as a technique?
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What is the majority of PCR methods rely on?
What is the majority of PCR methods rely on?
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Study Notes
Traffic Signals Terminology
- In Australia and New Zealand, a period of time during which a set of traffic movements receive a green signal is called a "stage".
- The concept equivalent to a 'phase' in the UK and USA is called a "stream" in Australia and New Zealand.
- The electrical output from the traffic signal controller in Australia and New Zealand is called a "signal group".
- The system that also uses the signal group terminology is the Australian and New Zealand traffic signal control system.
Polymerase Chain Reaction (PCR)
- The polymerase chain reaction (PCR) was invented by Kary Mullis in 1983.
- PCR is significant in genetic testing and research as it enables the amplification of specific DNA sequences, allowing for the detection and analysis of rare or hard-to-obtain genetic material.
- DNA sequences are amplified using PCR through a cyclic process of denaturation, annealing, and extension.
- PCR is commonly used as a technique in fields such as genetic engineering, forensic science, and medical diagnostics.
- The majority of PCR methods rely on the thermal cycling process.
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Description
Test your knowledge of traffic light control systems with this quiz! Explore the different mechanisms and technologies used to regulate traffic flow, from traditional clockwork systems to advanced computerized control and coordination. See how these systems ensure safe and efficient movement of vehicles and pedestrians at intersections.
