Qualification > Sciences
Edexcel BIOLOGY Doubts!!!!
~ Miss Relina ~:
--- Quote from: Amelia on March 31, 2011, 08:26:30 am ---Can you post the questions, please? Everyone here doesnt take Edexcel Biology.
Is post translational modification even there in your syllabus?
Anyways, This video might help - http://www.youtube.com/watch?v=OtyhPEyLhvA&feature=related
--- End quote ---
ok here is the link http://www.xtremepapers.net/Edexcel/Advanced%20Level/Biology/2004%20June/Unit%201%20June%2004.pdf
Thanks for reply
Amelia:
--- Quote from: Relina on March 28, 2011, 11:39:59 pm ---In june 2004 module 1:
Q 6 (c) answer said post transitional modification ??? what is it exactly ? how it affects the no. of amino acids to be less than the no. of codons ?
Q 6 (d) why in mark scheme the word Two underlined ??? is it a must to be included in my answer if yes then why exactly two :(
plz reply as soon as possible
Thanks in advance
--- End quote ---
Posttranslational modification (PTM) is the chemical modification of a protein after its translation. The modification of a newly formed protein; may involve the deletion of amino acids, chemical modification of certain amino acids, or addition of small molecules (eg, phosphate groups or sugars) to certain amino acids.
d -I dont know what 'two' you are talking about but here is the whole answer.
http://3.bp.blogspot.com/_KQ8_woKrwiE/SoMNQSl0JhI/AAAAAAAAADE/o0paPK0__YQ/s1600-h/2207.jpg
~ Miss Relina ~:
--- Quote from: Amelia on April 01, 2011, 12:18:13 pm ---Posttranslational modification (PTM) is the chemical modification of a protein after its translation. The modification of a newly formed protein; may involve the deletion of amino acids, chemical modification of certain amino acids, or addition of small molecules (eg, phosphate groups or sugars) to certain amino acids.
d -I dont know what 'two' you are talking about but here is the whole answer.
http://3.bp.blogspot.com/_KQ8_woKrwiE/SoMNQSl0JhI/AAAAAAAAADE/o0paPK0__YQ/s1600-h/2207.jpg
--- End quote ---
Thanks for answering the previous question
here is the mark scheme Q6(d) answer plz
Thanks in advance Jazak Allah Kairan
Amelia:
--- Quote from: Relina on April 01, 2011, 01:10:56 pm ---Thanks for answering the previous question
here is the mark scheme Q6(d) answer plz
Thanks in advance Jazak Allah Kairan
--- End quote ---
Where's is it, hon?
~ Miss Relina ~:
--- Quote from: Amelia on April 01, 2011, 04:16:28 pm ---Where's is it, hon?
--- End quote ---
oopps :-[ sorry formy careless
here its my dear :)
http://www.xtremepapers.net/Edexcel/Advanced%20Level/Biology/2004%20June/Unit%201%20June%2004%20MS.pdf
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