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From the era before Sanger sequencing was invented.


Jan
18
comment Process of Transcription
You've tagged this DNA, but really it is about RNA (although the same principles apply).
Jan
18
answered Process of Transcription
Jan
11
comment Topology of protein
This review (bio.ijs.si/~krizaj/group/Predavanja%202011/…) indicates that thioacylation of the type depicted in the question is indeed a cytoplasmic process.
Jan
11
comment Source of energy of adipocytes
In the fasting state blood glucose levels will be maintained by the liver via gluconeogenesis, so yes. During fasting the main function of the adipocytes is fat mobilisation and release of fatty acids (and glycerol, used by the liver as a substrate for gluconeogenesis).
Jan
10
comment Identifying mutations in a yeast strain
Just to add a useful term to this answer: the rare colonies on the -Trp plates and the -His at 37C are called revertants. Mutation classes (a), (b), (c) and (d) as listed in the question are all capable of reverting. A deletion cannot revert.
Jan
10
revised Identifying mutations in a yeast strain
deleted 7 characters in body
Jan
10
answered Source of energy of adipocytes
Jan
7
revised Gene transfer between Gram positive and Gram negative bacteria?
improved clarity especially the title
Jan
7
comment Lactate and Diabetes
Can you provide any references in support of your assertion that diabetes is associated with elevated levels of lactate?
Jan
6
answered On which strand does the promoter sit?
Jan
6
comment On which strand does the promoter sit?
@Chris I don't think it is correct to say that the coding strand is transcribed - the coding strand of the DNA has the same sequence as the RNA produced by transcription (except T>U). The other strand of the DNA is the template for the synthesis of the RNA.
Jan
6
comment Why are haploid cancer cells not killed by immune system?
I don't have an answer but - "Near-haploid karyotype in a squamous cell lung carcinoma" - onlinelibrary.wiley.com/doi/10.1002/gcc.2870070405/abstract
Jan
6
comment Is the complement system a part of innate or adaptive immunity
Just to underline that last point from @Chris - the signature property of the complement system is the use of proteins with reactive thioester groups to covalently tag cells, and this is very ancient. The plugging together of antibodies and the complement system is certainly a relatively recent innovation. The OP raises what is really a semantic point. There are also interactions between cellular immunity and humoral immunity, but it is still useful to think of these as separate processes with an interface.
Jan
6
revised Is the complement system a part of innate or adaptive immunity
grammar pedantry
Dec
22
comment Current human behavior as a genetic heritage
This is the subject of an entire field - evolutionary psychology en.wikipedia.org/wiki/Evolutionary_psychologist
Dec
22
answered How does a prophage leave the host cell's genome?
Dec
21
comment Transcription takes place from the 5’ to the 3’ end of the m-RNA. Why?
The argument put forward at the link provided by @Cloud, that the DNA strand with the same sequence as the mRNA might be called the template strand because it is translated into a protein is illogical. The "template" referred to in the phrase "template strand" is the template for transcription - even the transcription of a sequence which will not encode a protein, rRNA for example, requires a template.
Dec
17
comment Histidine - why essential for children?
This has been down-voted today without a comment (17th December 2013). It would be helpful if down-voters would explain why they disagree with a post.
Dec
15
comment Why is cyanide poisonous?
This answer seems to suggest that rotenone inhibits cytochrome oxidase, but it doesn't, it inhibits electron transport at complex I > ubiquinone.
Dec
13
comment Is there any genetic similarity that defy evolution theory?
I hope you don't mind, I added an image to make it easier to follow the discussion.