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Mutations of a DNA sequence could alter the expression of a gene. Describe and explain the process of gene expression and how a mutation could lead to disease.

DNA is a universal code for all living beings known to man. There are four nucleotide bases in DNA and RNA, the combinations of these sequences are what determine the order and length of a polypeptide. Ev...

OS
Answered by Omar S. Biology tutor
2409 Views

Chlorine, 15 g, is contained in a vessel with a volume of 0.80 dm3 at 330 K. Calculate the pressure exerted when the chlorine is treated as a perfect (ideal) gas giving your answer in terms of kPa

PV=nRT V=0.8 dm3=0.8 x 10-3 m3P= nRT/V R= 8.31 J K-1mol-1 T= 330 K n= mass/mr n = 15 g/ (2x35.5 g mol-1) n = 0.212 mol P = (0.212 mol x 8....

HG
Answered by Harry G. Chemistry tutor
2574 Views

How can natural selection and isolation lead to speciation?

What is speciation?When a new and distinct species evolves from an ancestor speciesReproductively isolated from the ancestor/other species2. How does natural selection work?a. Population of individuals, w...

LP
Answered by Laura P. Biology tutor
4224 Views

why is (x+y)^2 ≠ x^2 + y^2

Because if we simply expand (x+y)2 we'd get x2+y2+2xy which shows that there's an extra term which is 2xy. another practical way to check your work and see why LHS ≠ RHS i...

JH
Answered by Jamal H. Maths tutor
2710 Views

what should I include in my personal statement

You should include about why you want to do the course you are interested in, for me it was medicine. For a medicine personal statement for example, the university is looking for people who are deeply pas...

RS
1947 Views

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