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Biology 48 Online
OpenStudy (anonymous):

dna gives information to the cells who gives information to the dna ??

OpenStudy (anonymous):

neurons

OpenStudy (anonymous):

okay wat helps in such a pairing ?

OpenStudy (anonymous):

ok how are the impulses travelling into the cells ???

OpenStudy (anonymous):

neuron cells are the primal cells of the system because they transmit messages

OpenStudy (anonymous):

one question from u tiffanie tha we were talkin how dna get information not how m rna get information from dna

OpenStudy (anonymous):

Electroporation.

OpenStudy (anonymous):

ok didnt study about this term but like to know about it will plz explain

OpenStudy (anonymous):

It is usually used in molecular biology as a way of introducing some substance into a cell, such as loading it with a molecular probe, a drug that can change the cell's function, or a piece of coding DNA.

OpenStudy (anonymous):

I'm not altogether sure that I know what you mean... but I'll give it a shot. DNA itself acts as a "fuzzy blueprint" for protein production. The thing is, the DNA can't be read without at least slightly separating the two strands of RNA that comprise it. To duplicate DNA, many prokaryotes use what is called a replisome. Eukaryotes (us, for example) use telomerase. So that's DNA replication. If you mean how introns and exons (irrelevant genes vs. relevant genes) are determined, that it done in two main stages. mRNA is copied from the DNA by RNA Polymerase II which is triggered (in eukaryotes) by the DNA sequence TATA... the mRNA produced is messy, still containing the introns, or unnecessary-at-that-moment genes. snRNP's (small nuclear ribonucleoproteins) attach to the mRNA, cutting out the introns.

OpenStudy (anonymous):

u were saying about the protein synthesis but the ques is different...

OpenStudy (anonymous):

Just skip the second and third sentences... They were introductory statements.

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