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A level Biology: Post your doubts here!
It's an open challenge Hisham Khan plz clarify us:rolleyes: -
A level Biology: Post your doubts here!
Oh did a great effort that u found this!(y) I was even not satisfied with it -
A level Biology: Post your doubts here!
I hope this is understandable...the red ones are those from the original strand and the green ones are the newly synthesised strands....because it is cultured in a medium containing N-14 only, so all the new strands will be N-14 -
A level Biology: Post your doubts here!
After dividing once, all DNA will be 14+15 so all will be at L and after 2 divisions, there will be half 14+14 and half 15+14 -
A level Biology: Post your doubts here!
The TOTAL magnification must be calculated...so for the largest number of cells, the total magnification must be lowest which is x50 for A -
A level Biology: Post your doubts here!
The anticodon for serine is UCA so the codon is AGU and hence the DNA triplet is TCA Tip: the DNA triplet and anticodon are the same except for U and T -
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A level Biology: Post your doubts here!
No it combines with amine group to form carbaminohaemoglobin -
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A level Biology: Post your doubts here!
Test for reducing and non-reducing sugar both gave brick red ppt so there is no proof that non-reducing sugar will also be present...the question asks about the molecules which MUST be present, not those which CAN be present -
Chemistry: Post your doubts here!
Apart from general guessing, can this question be solved arithmetically? -
A level Biology: Post your doubts here!
We're not bullying but you're being kinda rude :/ -
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Chemistry: Post your doubts here!
That's pretty obvious...they said that X is the only CHLORINE CONTAINING COMPOUND, didn't say that it is the only product