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Describe the various mechanisms by which expression of genes are controlled by the cell's environment.

One of the mechanisms within a cell’s own environment that plays a part in controlling the expression of genes is histone acetylation and de-acetylation. These are the processes by which the lysine residu...

Answered by Yashoda J. Biology tutor
1986 Views

How would I use the verb 'aller' in the past tense?

As 'aller' belongs to the Mrs Vandertramp family, we would use the Past Participle of 'être' rather than 'avoir' as the auxillary to form the past tense. The pronouns before are still the same, however ra...

Answered by Cameron R. French tutor
1980 Views

How can I calculate the standard deviation of a data set?

The formula for the variance of a data set can be easily remembered by this catchy phrase: 'The mean of the squares minus the square of the mean'. The standard deviation is equal to the square root of the...

Answered by Robin M. Maths tutor
3012 Views

Prove by mathematical induction that 11^n-6 is divisible by 5 for all natural numbers n

First I would do the base case (the first value):Test n=1,111-6=5. 5 is divisible by 5 therefore true for n=1.
Now we assume true for n=k,11k-6 is divisible by 5.Next we test n=...

2628 Views

∫ x^3 *ln(2x) (from 2->1) can be written in the form pln 2 + q, where p and q are rational numbers. Find p and q.

Firstly I would think about how I could integrate this. In this case you would need integrate by parts. I use LATE to decide which value is u and v' which stands for Log,Algebra,Trig,Exp. Which ever one a...

Answered by Maths tutor
4823 Views

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