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Describe the stages in DNA transcription and translation

DNA is unziped by DNA helicase. RNA polymerase catalyses the formation of a complementary strand of pre-mRNA, using the non-coding strand of DNA as a template. The pre-mRNA contains non-coding regions (intro...
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Answered by Iona N. • Biology tutor
3733 Views

Assess the importance of a chosen marine ecosystem (15)

Coral reefs: diverse/fragile ecosystem, found in coastal areas/tropics/warm waters 23-29degrees C, (temp needed to sustain growth) valuable goods and services, threatened by global warming, rising SST. 1) Bi...
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Answered by Maria B. • Geography tutor
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Why is the derivative of x^n, nx^(n-1)?

From the definition of a derivative: f'(x) = lim h->0 ((f(x+h) - f(x)) / h) Let f(x) = x^n --> d\dx x^n = lim h->0 (((x+h)^n - x^n) / h) By binomial expansion, (x+h)^n = x^n + nhx^(n-1) + n(n-1)h^2 ...
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Answered by Joshua F. • Maths tutor
5388 Views

¿Cuál es la diferencia entre cuando y cuándo?

" Cuando " sin tilde se utiliza siempre que se quiere expresar una condición en el futuro. Ejemplo: Iré a la casa de mi amigo cuando tenga tiempo. En este caso, ir a la casa de su amigo depende del...
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Answered by Karl H. • Spanish tutor
43501 Views

Show that 12coshx - 4sinhx = 4e^x + 8e^-x

Using the definitions of coshx and sinhx (coshx=1/2(e^x+e^-x) and sinhx=1/2(e^x-e^-x)), we can substitute these into what we want to show, giving 12(1/2(e^x+e^-x)) - 4(1/2(e^x-e^x)), expanding this out gives...
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Answered by Emily W. • Maths tutor
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