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Explain the formation of two landforms associated with convergent tectonic plate boundaries

Possible answersAn ocean trench - created when a continental plate meets and oceanic plate, and the latter is subducted due to it being denser. As the oceanic plate is forced into the mantle, a deep underwat...
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Answered by Scott W. • Geography tutor
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Starting with mRNa in the cytoplasm, describe how translation leads to the production of a polypeptide ( without including transcription or slicing)

Once the mRNA is in the cytoplasm the smaller ribosomal subunit will connect to it. It will then slide in the 5' to 3' until it reaches the initialization codon ( AUG), once this happens the TRNA that carrie...
Answered by • Biology tutor
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After one molecule of oxygen has bound to Haemoglobin, it is easier for a second molecule of oxygen to bind. Explain Why?

Binding of the first molecule of oxygen changes the tertiary/quarternary structure of Haemoglobin - this can be referred to as a conformational shift. This change in structure then exposes another binding si...
AM
Answered by Alice M. • Biology tutor
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What is the optical activity of the product formed when propanone is refluxed with HCN with KCN dissolved in ethanol and why?

The product formed (hydroxybutanitrile) is optically inactive because the nitrile nucleophile can attack the propane at its carbonyl bond which is trigonal planar about it. There is an equal chance of it att...
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Answered by Aditya Y. • Chemistry tutor
3014 Views

Prove algebraically that n^3+3n^2+2n+1 is odd for all integers n

To show this we should consider when n is odd and when n is even,If n is odd then we can find an m such that n=2m+1. Substituting n=2m+1 and expanding gives 8m^3+12m^2+6m+1+12m^2+12m+3+4m+2+1=8m^3+24m^2+22m+...
AP
Answered by Alistair P. • Maths tutor
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