Asked in Human Anatomy and Physiology
What is the term for DNA after it has left the nucleus?
The DNA found in the nucleus does not leave the nucleus. Instead, a copy of this DNA is carried on mRNA out of the nucleus and to the ribosomes. By keeping the DNA in the nucleus, it is protected from degradation - so a "master copy" of the instructions can be kept safe. ...
Asked in Cell Biology (cytology)
Why can most DNA not leave the nucleus?
Most DNA does live in the nucleus. It is found in the nucleus of most of our cells and this is were it is mostly found. The DNA is very small and can fit in to the nucleus of our cells. All of our DNA in the nuclei are the same in our body. and everyone has a different DNA consisting of A,T,C,G Most DNA does live in the nucleus. It is found in the nucleus of most of our cells...
Asked in Genetics
Where in the cell is the DNA transcribed into mRNA?
Because DNA never leaves the nucleus, it is in there that DNA is transcribed onto a mRNA molecule which then leave the nucleus through the nuclear pores to head out to a ribosome to be translated. ...
Asked in Science
What is confined to the nucleus of the eukaryocyte?
In the nucleus is DNA which is contained on chromosomes. These never leave the nucleus. Instead, when the DNA needs to be used to create new cells, something called rNA copies the DNA code to take it to various other sites. Inside of the nucleus there is also nucleic acid. ...
Asked in Genetics
Why must you go through the process of changing DNA into rna?
In order to protect the DNA from potentially damaging reactions in the cytoplasm, the nucleus prevents the DNA from leaving it. Therefore it must be transcribed by mRNA, which can leave the nucleus. ...
Asked in Biology
Why can mRNA leave the nucleus while DNA can not?
Because mRNA is a single stranded molecule where as DNA forms a double helix. Therefore mRNA is a smaller molecule than DNA so can leave the nucleus ALSO mRNA has been processed post-translation. This means a 5' cap has been added and a 3' poly(A) tail has been added. This 5' cap, which DNA does not have, allows mRNA to leave the nucleus through nuclear pores. All above is good idea all , And me have something that need to include more. First time...
Asked in Biology, Microbiology, Genetics
Does DNA leave the nucleus to direct the production of proteins?
No, in an eukaryote*, DNA will never leave the nucleus. Its code is carried past the nuclear envelope to the ribosomes through an intermediate, mRNA (messenger RNA). The reason for this is primarily because the cytoplasm is rife with hydrolytic enzymes that would degrade the DNA once outside of the nucleus. If the DNA is destroyed, then the cell is out of luck and it will cease to function. * Note that prokaryotes do not have a nucleus; thus, protein synthesis does occur...