Top answers

Describe the use of PCR and how exponential amplification can be achieved.

Polymerase chain reaction ( PCR ) is a technique used in molecular biology to amplify a single copy or a few copies of a segment of DNA across several orders of magnitude, generating thousands to millions of...
SB
Answered by Sam B. • Biology tutor
8846 Views

I wanted to practice talking about my holidays, what would some useful phrases be?

He visitado Francia hace 3 años - I visited France 3 years ago Fui con mi familia – I went with my family Me gustó la comida - I liked the food No he visitado España pero me gustaría ir porque ...... - I've ...
KA
Answered by Kai A. • Spanish tutor
2940 Views

What are some of the key reasons for Hitlers rise to power?

The Wall Street Crash in 1929 caused huge economic problems for Germany. With millions unemployed, German citizens lost faith in the Weimar Government. Hitler was able to exploit this by promising to rebuild...
KA
Answered by Kai A. • History tutor
3254 Views

Solve the equation 5(2c - 3) = 19

5(2c - 3) = 19 5x2c - 5x3 = 19 10c - 15 = 19 10c = 19 + 15 10c = 34 c = 34/10 = 3.4
EB
Answered by Eivinas B. • Maths tutor
4060 Views

The lamp has an efficiency of 20%. Explain what this means.

20% efficiency means that 20% of the electrical energy going into the lamp is transfered to light, and 80% of the energy is lost/wasted.
BP
Answered by Bryce P. • Physics tutor
16144 Views