(Original post by freedom123)
I said that as sea temperatures increase, then saprotrophs etc will be able to decompose the faeces and therefore release the carbon dioxide from it back into the atmosphere which would then contribute to global warmimg! - can anyone verify this?
I also put that the increase in sea temp. would mean the faeces could be decomposed which would release more carbon dioxide which would contribute to global warming.
What was question 13 again? The recombinant DNA one? Because that was either C or A technically it could have been either, because it's recombinant DNA with respect to both the Agrobacterium.t and the rhizobium DNA… all in all an evil question..
What was the role of hydrogen bonding in maintaining the hairpin shape? I wrote an essay for it saying they have a function of providing support for the shape and talked about hydrogen bonding between base pairs
(Original post by adam_johnson)
I'm pretty sure q8 is C because if 24/80 are thymine. This means 30% are T and 30% are A so 20% are C and G.
An q14 is C because you need to 100+67=167kj
And I think the rest are correct.
I think for q14, the 100kJ is available to the ecosystem, as faeces - because it flows through the saprotrophic food chain. So it's on 67kJ, so A
did anay one else right for the fuction of hydrogen bonding for the hairpin shape that the some bases are complimentary and for hyrgen bonding thus hole the strand together but the bases at the end are not thus their repulsion gives the ringed structure on the left and the lines pushing outwards = hairpin shape