Edexcel Gcse Biology/additional Science - Unit B2 The Components Of Life Page 3
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Answer ALL questions.
Some questions must be answered with a cross in a
box
. If you change your mind about an answer, put a
line through the box
and then mark your new answer
with a cross
.
PROTEINS
1
Proteins are made up of amino acids.
(a) The table shows the DNA bases that code for
some of the amino acids found in proteins.
DNA bases
AAA
AAC
CAA
TAC
TTC
Amino acid
phe
leu
val
met
lys
Part of the DNA coding for a protein is:
T A C C A A T T C
(i)
State the order of amino acids coded for by
this sequence of DNA. (1 mark)
_________________________________________________________
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