Biology? Are you ready? (2 Viewers)

[UnrealAnchovies]

wow thanks for going out of your way to explain !

Can you tell me if I'm correct about this ?
Say if there is a strand with the letters - CAT GAC TAU then does it get changed to GTA CUG AUU I'm not sure what happens with the U ?

if the DNA strand is: AAC ATA GCT CAT

mRNA strand will be: UUG UAU CGA GUA

pretty sure thats it

 

[cpwincess19]

There isn't a dot point on it, it's under the 'assumed knowledge' section along with graphing, variables etc

Yeah that's why I was wondering :/ because we've never been asked a question about that (well not me anyway)
& i have a theory that our year (year 12 2011) are like the guinea pigs for everything -.-
And for transgenic species - I think I might just talk about the injecting of salmon genes into strawberries , what are you guys thinking of talking about ?

 

[UnrealAnchovies]

This is a solid explanation and I may be incorrect but I think the only thing a little wrong here is that rRNA doesn't specifically catalyze the process you can just say ribosomes catalyze the process and rRNA are a structural part of ribosomes (along with other proteins).

yeah youre most probably right

 

[UnrealAnchovies]

This is a solid explanation and I may be incorrect but I think the only thing a little wrong here is that rRNA doesn't specifically catalyze the process you can just say ribosomes catalyze the process and rRNA are a structural part of ribosomes (along with other proteins).

yeah youre most probably right

 

[cpwincess19]

if the DNA strand is: AAC ATA GCT CAT

mRNA strand will be: UUG UAU CGA GUA

pretty sure thats it

So there can't be a U in the DNA strand ?

 

[UnrealAnchovies]

disregard that mind blank

 

[danjw]

So there can't be a U in the DNA strand ?

Uracil (U) exists only on mRNA strands Thymine (T) is on DNA strands

 

[danjw]

Yeah that's why I was wondering :/ because we've never been asked a question about that (well not me anyway)
& i have a theory that our year (year 12 2011) are like the guinea pigs for everything -.-
And for transgenic species - I think I might just talk about the injecting of salmon genes into strawberries , what are you guys thinking of talking about ?

I'll be using the salmon example to, simply because I found it interesting so I know I'll remember it.

 

[memo15]

lolll wouldnt it be crazy if someone had the bio paper with them :O

 

[cpwincess19]

Uracil (U) exists only on mRNA strands Thymine (T) is on DNA strands

Thanks so much! That makes it a lot easier to understand now ahaha
Also does anyone have a good way of remembering B&T cell interaction ?

 

[cpwincess19]

I'll be using the salmon example to, simply because I found it interesting so I know I'll remember it.

Yep same!!!

 

[Effekt]

This is my understanding of how it works
Uracil (U) replaces thymine (T) as the complementary RNA nucleotide of Adenine (A)

Can anyone confirm this or have a better example?

 

[cpwincess19]

lolll wouldnt it be crazy if someone had the bio paper with them :O

LOL yeah like that facebook group about googling hsc 2011 answers just in case

 

[cpwincess19]

This is my understanding of how it works
Uracil (U) replaces thymine (T) as the complementary RNA nucleotide of Adenine (A)

Can anyone confirm this or have a better example?

I was just confused about what happens to the U but now it's clear because I now know that Uracil doesn't exist in the DNA strand

 

[danjw]

Thanks so much! That makes it a lot easier to understand now ahaha
Also does anyone have a good way of remembering B&T cell interaction ?

As far as I know all you need to know is that helper T cells initiate the production of B cells to help fight infection?
Make sure you know the 4 different types of Tcells to!

 

[UnrealAnchovies]

Thanks so much! That makes it a lot easier to understand now ahaha
Also does anyone have a good way of remembering B&T cell interaction ?

i learned that using a comic strip lol (not a retard)

firstly, as part of phagocytosis, macrophages engulf and display the antigen on their surface. this initiates helper t-cells into (i guess) realising that an antigen has entered and can potentially affect normal bodily function. it then spurns the differentiation of t and b cells into their components (cytotoxic t cells and plasma b cells) through the release of (i believe) interleukin. these cells attack and destroy the antigen

now suppressor t cells differentiate and 'supress' the immune response and finally memory b and t cells will remember the antigen and how the immune response fought it for future etc (this is why vaccines work)

 

[Effekt]

Ok, lets start a marathon. I will start with a question based off a dotpoint.

Explain how mutations in DNA may lead to the generation of new alleles.

 

[UnrealAnchovies]

This is my understanding of how it works
Uracil (U) replaces thymine (T) as the complementary RNA nucleotide of Adenine (A)

Can anyone confirm this or have a better example?

just for the sake of accuracy, its better to say base, since nucleotides are phosphate/ sugar/ base things

you probably know this and i'm just being picky

 

[cpwincess19]

ohhhh okay thankyou !
I only know suppressor t cells , memory and cytotoxic killer cells :/

 

[dela_]

I was born ready