Topscore bio question! test 1

[coffinhaed]

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THe pores of the nuclear envelope serve as..

A. allow protein to move into the nucleus
B. it allows ribosomal component to exit
C. allow mRNA to exit
D. A n B

E all of them

The answer is E. I thought only B and C would be the answer when do proteins go into the cells via nuclear pores???

 

[kkim85]

In order to make ribosomes, you need to bring in the protein structures, which then somehow combines with rRNA in the region of nucleolus(Dunno if this is the correct spelling)....

 

[Troyvdg]

THe pores of the nuclear envelope serve as..

A. allow protein to move into the nucleus
B. it allows ribosomal component to exit
C. allow mRNA to exit
D. A n B

E all of them

The answer is E. I thought only B and C would be the answer when do proteins go into the cells via nuclear pores???

Also, if on the real DAT you came across a question like this, you could deduce the answer was E, by just knowing that B & C were correct

 

[levesque2177]

remember that eukaryotic DNA have various proteins on them like histones. also, replication, transcription, DNA remodelling, etc, etc, all require proteins and enzymes. Since proteins are made in active ribosomes attached to ER, these proteins must be moved into the nucleus. so that means that the nuclear membrane must let proteins in one way or another.

 

[coffinhaed]

Thanks guys, I was just not sure weather pores are the one they let in cause you never hear about it lol. But it makes sense now!