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Describe a typical cycle of a PCR reaction.

Polymerase Chain Reaction or PCR is the process of amplifying a sample of DNA. The first stage of a PCR cycle is known as the denaturation phase. This occurs at a temperature of 95C and lasts for approximate...
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Answered by Max B. • Biology tutor
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Solve for x in the following equation using the quadratic formula, completing the square and factoring method: 2x^2-x-1=0

x=-1/2 and x=1
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Answered by Ravinder C. • Maths tutor
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How can I tell if the edition of my music score is reliable? - piano

"Urtext" (German for "original text") editions are generally the closest to the composer's intentions. Since centuries have passed, sometimes it is difficult to tell whether an Urtext edi...
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Answered by Luca S. • Music tutor
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What is the life cycle of a star?

Star formation begins when dust and gas starts to gather to form a cloud called nebula . Gravity causes the cloud to spiral and form a Protostar , where gravity accelerates the gas particles, resulting in he...
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Answered by Barbara P. • Physics tutor
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Solve the equation 5(2c -3) = 19

Firstly I would try to learn about the students abilities and maybe do an easier linear equations (without brackets) to ensure they have a basic idea how to solve these types of equations. For this questions...
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Answered by Jasmine G. • Maths tutor
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