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Give 3 differences in structure between DNA and mRNA

DNA contains the nucleotide base thymine whereas mRNA contains the nucleotide base uracil instead DNA is double stranded, mRNA is single stranded DNA contains the sugar subunit deoxyribose, mRNA contains the...
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Answered by Callum B. • Biology tutor
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After Brexit, are we still in Europe?

Yes, we (you) are still in Europe. The Brexit has nothing to do with geographical division; it is related with the economical and political aspect of the European Union. The UK is going through a process tha...
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What is Hund's rule?

Electrons occupy every orbital in each subshell once and then occupy the full orbital with both electrons
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Answered by Intesar N. • Chemistry tutor
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What does the DNA sequence being 'degenerate' mean?

Amino acids are coded for by specific codons. There are some instances where some particular amino acids can be coded for by more than one codon (codon being three nucleotides bonded together). This is known...
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Answered by Bibi N. • Biology tutor
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f(x) = 2x^3 – 7x^2 + 4x + 4 (a) Use the factor theorem to show that (x – 2) is a factor of f(x). (2) (b) Factorise f(x) completely.

We are presented with a third order polynomial with 4 terms, so we expect 3 solutions for f(x)=0. To prove that (x-2) is a factor we must insert the value of x=2 into the function and if f(2)=0 then we have ...
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Answered by Nazar A. • Maths tutor
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