How to bluf your way into: DNA code

February 8th, 2007

Actual DNA under a microscopeA few facts that might be helpful if you want to bluf your way into DNA sequencing.

The complete DNA sequence of a human being is only about 3 gigabytes and can easily be fitted on a DVD.

A, T, G, and C are the “letters” of the DNA code; they stand for the chemicals adenine, thymine, guanine, and cytosine that make up the nucleotide bases of DNA. Each gene’s code combines the four chemicals in various ways to spell out 3-letter “words” that specify which amino acid is needed at every step in making a protein.

Here is a sample DNA format:

LOCUS GXP_170357 743 bp DNA
DEFINITION loc=GXL_141619|sym=TPH2|geneid=121278|acc=GXP_170357|
taxid=9606|spec=Homo sapiens|chr=12|ctg=NC_000012|str=(+)|
start=70618393|end=70619135|len=743|tss=501,632|
homgroup=4612|promset=1|descr=tryptophan hydroxylase 2|
comm=GXT_2756574/AK094614/632/gold;
GXT_2799672/NM_173353/501/bronze
ACCESSION GXP_170357
BASE COUNT 216 a 180 c 147 g 200 t
ORIGIN
1 TTGATTACCT TATTTGATCA TTACACATTG TACGCTTGTG TCAAAATATC ACATGTGCCT
61 TATAAATGTG TACAACTATT AGTTATCCAT AAAAATTAAA AATTAAAAAA TCCGTAAAAT
121 GGTTTAAGCA TTCAGCAGTG CTGATCTTTC TTAAATTATT TTTCTAATTT TGGAAAGAAA
181 GCACAAAATC TTTGAATTCA CAATTGCTTA AAGACTGAGG TTAACTTGCC AGTGGCAGGC
241 TTGAGAGATG AGAGAACTAA CGTCAGAGGA TAGATGGTTT CTTGTACAAA TAACACCCCC
301 TTATGTATTG TTCTCCACCA CCCCCGCCCA AAAAGCTACT CGACCTATGA AACAAATCAC
361 ACTATGAGCA CAGATAACCC CAGGCTTCAG GTCTGTAATC TGACTGTGGC CATCGGCAAC
421 CAGAAATGAG TTTCTTTCTA ATCAGTCTTG CATCAGTCTC CAGTCATTCA TATAAAGGAG
481 CCCGGGGATG GGAGGATTCG CATTGCTCTT CAGCACCAGG GTTCTGGACA GCGCCCCAAG
541 CAGGCAGCTG ATCGCACGCC CCTTCCTCTC AATCTCCGCC AGCGCTGCTA CTGCCCCTCT
601 AGTACCCCCT GCTGCAGAGA AAGAATATTA CACCGGGATC CATGCAGCCA GCAATGATGA
661 TGTTTTCCAG TAAATACTGG GCACGGAGAG GGTTTTCCCT GGATTCAGCA GTGCCCGAAG
721 AGCATCAGCT ACTTGGCAGC TCA

UPDATE: Pim Volkers sent me this movie which explains DNA a lot better than I have. Check it out:

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2 Responses to “How to bluf your way into: DNA code”

  1. rbnhd76 on January 17, 2008 9:18 pm (21:18)

    Where did this part at the end come from; “there were no mysterious life forces” ??? You had me till then. Mix all these chemicals in a jar, and shake. Tell me how much DNA grows from the mix.? ? ? Cant you see the work and craftsmanship of a Master?? Not to mention the Breath of Life! Seek the Truth and He shall find you.

  2. Gloria on February 22, 2008 4:46 pm (16:46)

    It was all very interesting, I went to a lecture last night by Dr.Frances Collins who aside from being a gene guy and working on the humane gnome progect is also a follower of Christ and I think he and I have to agree that it took and intellengence to create the beauty of DNA. I on my own I would say it took one intellengence because nothing this fantastic is ever done by committee.

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