Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?
AIPMT 2008, Medium
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d (d) : $AUG$ codes for methionine and is initiation or start codon which starts the synthesis of polypeptide. $UAA$ (ochre), $UAG$ (amber) and $UGA$ (opal) do not specify any amino acid so they are called termination codons. $CUU, CUC, CUA$ and $CUG$ codes for leucine whereas $GCU, GCC, GCA$ and $GCG$ codes for alanine.
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Arrangement of $DNA$ has the triplet base sequence $AAC\ GAC\ AGC\ GGC\ ACA\ AAA$. Due to mutation, the first base only got deleted. Then the likely effect of this on the coding of the $DNA$ segment is that
Assertion : Histones are basic proteins of major importance in packaging of eukaryotic $DNA$. $DNA$ and histones comprise chromatin forming the bulk of eukaryotic chromosome.
Reason : Histones are of five major types $H_1,\,H_2A\,, H_2B,H_3$ and $H_4$ .