Search found 18 matches

by Dr.Doom
Sun Mar 06, 2005 9:46 am
Forum: Microbiology
Topic: Archaea
Replies: 10
Views: 10740

archea can survive in extreme condition because of a lot of things; to name some, halophiles have compatible solute to avoid problem with osmosis, hyperthermophils have heat stable enyzmes (more ionic groups) and membrane with more sturated lipid .... stuff like that, they are fit to survive in thos...
by Dr.Doom
Sun Mar 06, 2005 9:41 am
Forum: Microbiology
Topic: vaccination
Replies: 9
Views: 16399

the rate of mutation is not directly proportional to the number of replication because mutation is a totally random event. It may seem that way but its not; so there is no direct proportion (you cannot calculate the amount of mutation directly given the rounds of replication); and HIV, i think, came...
by Dr.Doom
Sun Mar 06, 2005 9:20 am
Forum: Microbiology
Topic: Genetics in classification of bacteria
Replies: 6
Views: 12890

... thats hard because classification of bacteria is usually done by examining the s16 rRNA unit because its sequence is conserve enough to be compared but random enough to have some variations. In terms of transduction and those kinda bacteria "sex" processes, the only one i can think of is interup...
by Dr.Doom
Sun Mar 06, 2005 9:11 am
Forum: Bioinformatics
Topic: info about biotechnology
Replies: 8
Views: 11052

Biotechology is a large field with many different applications,but it basically boils down to playing with genetics. Its not like stuff you see in Resident Evil or stuff like that, its more like messing around with bacterial DNA and trying to produce marketable chemicals (e.g. insulin). So if you ar...
by Dr.Doom
Sun Mar 06, 2005 7:39 am
Forum: General Discussion
Topic: Exception to Characteristics of Life.
Replies: 57
Views: 75765

Viruses do have genetic material (ssRNA, ssDNA ...etc). Prions are proteins; they do multiple through protein-protein. All other animate objects have genetic material (yes even fungus); therefore, the cloest thing may be a prion, but i don't know if you can consider that as an animate object.
by Dr.Doom
Sun Mar 06, 2005 7:02 am
Forum: Molecular Biology
Topic: DNA decay
Replies: 6
Views: 8551

Perserving DNA ?? Do you mean limiting mutation or keeping the whole DNA throughout your life? Well the thing is even without mutation, human DNA will change throughout one's life time. DNA shortens after every round of replication due to the problem with the orientation of the telomeres and the lim...