Top answers

What is the charge of a nucleus?

Neutral
IN
Answered by Intesar N. • Chemistry tutor
3030 Views

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...
BN
Answered by Bibi N. • Biology tutor
12498 Views

What is the difference between language, structure and form in analysis of poetry?

Language: To analyse language we analyse the poet's choice and use of lexis. It's helpful to ask: What connotations does a word carry and why might the poet have chosen to use this specific word? What langua...
RB
9074 Views

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 ...
NA
Answered by Nazar A. • Maths tutor
16299 Views

Describe and explain the effects of pH, temperature, enzyme concentration and substrate concentration on enzyme activity

pH : All enzymes have an optimum pH value which is very specific. This is because hydrogen ions and hydroxide ions have very significant changes on the tertiary structure of an enzyme, which can cause substr...
EO
Answered by Eloise O. • Biology tutor
16692 Views