swag_sxc_boi's Bio 3/4 question thread

[swagsxcboi]

Dendritic cells are the most important antigen presenting cell, more important than your macrophage!  They typically prime the adaptive T cell response.
http://www.nobelprize.org/nobel_prizes/medicine/laureates/2011/steinman-facts.html

FYI: professional antigen presenting cells, there are three!  Dendritic cell, macrophage and the B cell is also an antigen presenting cell!

Thanks guys!

[vox nihili]

Omg what did I do!!

haha you're famous around these parts for your microbiol/immunology knowledge... I feel really stalkerish now hahah, but I legitimately thought "ah fuck it, I'll wait for simpak to answer it"

[simpak]

Oh okay!  I'm just naturally over-enthusiastic about Immunology all the time, it's okay, I SHOUT IT FROM THE ROOFTOPS therefore it's not stalkerish!  I'm flattered though haha :3

[vox nihili]

Oh okay!  I'm just naturally over-enthusiastic about Immunology all the time, it's okay, I SHOUT IT FROM THE ROOFTOPS therefore it's not stalkerish!  I'm flattered though haha :3

haha I'm glad! I can't say I share your enthusiasm though! Though, you never know...maybe second year will be better than the learning the same crap over and over again in VCE and first year?

[simpak]

Second year is definitely better.

[vox nihili]

Second year is definitely better.

Great! I have to do the second year prereq for it I think!

[swagsxcboi]

Best way to define disease?

[Yacoubb]

Best way to define disease?

Disease refers to the condition where the body's normal functioning is impaired, excluding impairment caused by physical injury.

[swagsxcboi]

Disease refers to the condition where the body's normal functioning is impaired, excluding impairment caused by physical injury.

Thanks Yacoubb! 

[Yacoubb]

Thanks Yacoubb! 

It's all good

[vox nihili]

Excluding impairment caused by physical injury.

Impairment may still cause a disease though, eg compartment syndrome (which is the direct result of trauma in many cases).

[Irving4Prez]

Hey goiz, what are a few differences between selective breeding and genetic recombination?

So far I have: Selective breeding is the intentional breeding of organisms with desirable traits in an attempt to produce offspring with similar desirable traits. The process doesn't involve the integration of foreign DNA into its genome whereas recombination does.

I was considering saying, recombination wasn't 'natural' but artificial breeding in a way, isn't either as it doesn't occur without farmers deliberately choosing parents.

[Yacoubb]

Hey goiz, what are a few differences between selective breeding and genetic recombination?

So far I have: Selective breeding is the intentional breeding of organisms with desirable traits in an attempt to produce offspring with similar desirable traits. The process doesn't involve the integration of foreign DNA into its genome whereas recombination does.

I was considering saying, recombination wasn't 'natural' but artificial breeding in a way, isn't either as it doesn't occur without farmers deliberately choosing parents.

Okay where did you find this question?.. This is kinda strange. It's like asking the difference between a protein and a reflex arc. They're not exactly in the scope where you could ask for a difference.

[swagsxcboi]

Okay where did you find this question?.. This is kinda strange. It's like asking the difference between a protein and a reflex arc. They're not exactly in the scope where you could ask for a difference.

hahahaha I don't think he means genetic recombination...
I think he's talking about genetically modified organisms or transgenic organisms

[Yacoubb]

hahahaha I don't think he means genetic recombination...
I think he's talking about genetically modified organisms or transgenic organisms

Ahhh, I was just perplexed at that lol. Makes sense though - but even so, I mean its weird to distinguish the two. I mean, like both are ways of intervening in evolution, but it would probably be more suitable to distinguish for instance transgenic organisms and genetically-modified organisms, and then distinguish selective breeding from natural selection. I would cry if such a question came up LOL