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qetzal



Posts: 308
Joined: Feb. 2006

(Permalink) Posted: Nov. 17 2011,12:39   

Southstar,

Your friend Ioseb may claim to be a scientist, but he(?) doesn't sound like he knows what he's talking about. He mentions "Malaria or HIV plasmoid." No such things. Malaria is the disease caused by a parasite called Plasmodium. HIV is a virus. Neither one is a plasmid, which is a form of self-replicating DNA.

He says Sequence A produces Protein B through replication, transcription, and translation. Wrong! Replication is not involved in going from DNA sequence to protein. Replication of Sequence A just gives you more copies of Sequence A.

As for this:

 
Quote
Please note that the modification of a nucleotide is an extremely rare event, 2 nucleotides are immensly rare, 3 are astronomicaly rare, 4 are next to impossible.


The average human baby's DNA contains ~100 new mutations that weren't present in either of it's parents (http://sandwalk.blogspot.com/2010.......on.html).

Plus he's still dodging your question of how to quantitatively measure information in a DNA sequence. He says it's based on the number of kilobase pairs and the number of mutations, but that's hand waving. Which has more information, in his opinion - sequence 1: AAAAAAAAAAAA, or sequence 2: ATGACCGACTAG? They're the same length, so do they have equal information? What if the first base of each is mutated to a C. How much has the information in each sequence changed? Just one A-to-C mutation in each, so it must be the same amount, right?

Sorry, but Ioseb is talking gibberish.

  
  366 replies since Nov. 08 2011,06:46 < Next Oldest | Next Newest >  

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