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What are some differences between RNA and DNA?

Structurally these molecules are very similar with a few differences. They are both made up of monomers called nucleotides. Nucleotides simply refer to nitrogenous bases, pentose sugar together with the phos...
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Answered by Vasiliki K. • Biology tutor
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explain the powers of the prime minister in the UK

The Prime Minister has several powers within his jurisdiction, such as the power of patronage. This involves the appointment of judges and civil servants, which is important as it means they can decide over ...
RS
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Which tense do use when talking about your childhood?

It depends on what you are describing. If talking about an activity which you undertook regularly and for an unspecified amount of time, you would use the imperfect tense. Eg. "Cuando era pequeña, tocab...
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Answered by Ajoa N. • Spanish tutor
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Solve the following set of simultaneous equations: (eq.1) x + 3y = 10, (eq.2) 2x + y = 5

Firstly, multiply eq.1 by 2, to obtain: (eq.3) 2x + 6y = 20Next, subtract eq.2 from eq.3 to obtain: (eq.4) 5y = 15Next, divide eq.4 by 5 to obtain: y = 3Now substitute y = 3 into any of the previous equation...
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Answered by Joe D. • Maths tutor
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It is given that f(x)=(x^2 +9x)/((x-1)(x^2 +9)). (i) Express f(x) in partial fractions. (ii) Hence find the integral of f(x) with respect to x.

(i) Let f(x) = A/(x-1) + B/(x 2 +9). Multiplying through by (x-1)(x 2 +9) we get x 2 +9x = A(x 2 +9) + B(x-1). By substituting x=1 in to eliminate B, we find that A=1 , and by equating coefficients, B=9. Hen...
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