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What was the process of the Meelson and Stahl experiment in proving the process of DNA replication?

The double helix structure of DNA was already proven by X-Ray diffraction, but the process of replication was still unknown There were 3 possible mechanisms: conservative, semi-conservative and dispersive PR...
AJ
Answered by Aran J. • Biology tutor
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Solve x^2 > |5x - 6|

We need to split the problem into two cases to remove the abs sign. Case 1: 5x - 6 >= 0, equivalent to x >= 6/5. In this case the problem is now to find the values of x that satisfy x 2 > 5x - 6. Re...
JH
Answered by James H. • Maths tutor
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There are 300 students at a school who have been asked to attend assembly. 1/10 students are sat on chairs, 85% of students are sat on the floor, the rest do not attend assembly. How many students did not attend assembly?

300 x 1/10 = (300/10) x 1 = 30 students sat on chairs 85% of 300 = (300/10) x 8.5 = (30 x 8) + (30 x 0.5) = 240 + 15 = 255 students sat on the floor Students who did not attend = 300 - 30 - 255 = 15
JD
Answered by Jonny D. • Maths tutor
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AL
Answered by Adam L. • Maths tutor
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What is an improper fraction, and how to I make thisproper so that it can be differentiated?

An improper fraction is any fraction where the order of the constant (power of x) is equal or greater in the nuberator than the denominator, take for example; (x 2 -3x-2)/(x 2 -3x+2) This can first be factor...
AS
Answered by Aidan S. • Maths tutor
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