Cell Biology

Learn the toughest concepts covered in Cell Biology with step-by-step video tutorials and practice problems by world-class tutors

5. DNA to RNA to Protein

mRNA Export and Nuclear Structures

Next Topic
1

concept

Nuclear Structures

clock
7m
Play a video:
Was this helpful ?
0
2

concept

mRNA Export

clock
2m
Play a video:
Was this helpful ?
0
3

concept

Nuclear Import

clock
5m
Play a video:
Was this helpful ?
0
4

problem

Match the following nuclear locations to its function 

i. Nuclear pore complexes _________
ii. Nuclear lamina _________
iii. Nucleolus _________
iv. Nuclear Envelope _________ 

a. Matrix of proteins that provide nuclear shape and structure 

b. Processing of ribosomes 

c. Separate the nucleus from the cytoplasm 

d. Allow for transport between the nucleus and cytoplasm

clock
1m
Play a video:
Was this helpful ?
0
5
Problem

Ribosomes are synthesized in which of the following locations?

6
Problem

Import of molecules into the nucleus requires the use of importin and RAN-GTP. When RAN-GTP binds to importin, what happens to the molecule?

7
Problem

Unprocessed mRNA is exported from the nucleus to be processed before translation.