#1
|
||||
|
||||
question paper 2012
Does anybody know the answer of this question ?
Explain how DNA , mRNA and Proteins are inter related to each other ? |
#2
|
||||
|
||||
Quote:
Transcription: The process to make RNA from DNA. This process occurs in the nucleus of the cell. In simple terms: RNA polymerase binds to the DNA and transcribes a pre-mRNA strand, which contians coding regions (exons) and non-coding regions (introns). The pre-mRNA is made mature by removing the intron regions (non-coding regions) and adding a 5'Guanosine cap and a 3' poly A tail (A=Adenosine). This is called a mature mRNA. All of this occurs in the nucleus. Translation: This process translates mRNA to proteins. mature mRNA leaves the nucleus and goes to a ribosome (the ribosome (aka rRNA) binds to the region before the start codon. In bacteria, it is called the shine-delgarno sequence). Then tRNA comes into the p-site in the ribosome and you have base pairing between the mRNA and tRNA. Once this interaction occurs, it causes a conformational change within the tRNA and that releases the amino acid. The amino acids string together to make a protein.
__________________
True knowledge exists in knowing that you know nothing. "Socrates" |
The Following 2 Users Say Thank You to Naveed_Bhuutto For This Useful Post: | ||
aghaadnan (Tuesday, July 22, 2014), Maidah shaikh (Thursday, June 19, 2014) |
#3
|
||||
|
||||
[QUOTE=Naveed_Bhuutto;731382]Transcription:
The process to make RNA from DNA. This process occurs in the nucleus of the cell. In simple terms: RNA polymerase binds to the DNA and transcribes a pre-mRNA strand, which contians coding regions (exons) and non-coding regions (introns). The pre-mRNA is made mature by removing the intron regions (non-coding regions) and adding a 5'Guanosine cap and a 3' poly A tail (A=Adenosine). This is called a mature mRNA. All of this occurs in the nucleus. Translation: This process translates mRNA to proteins. mature mRNA leaves the nucleus and goes to a ribosome (the ribosome (aka rRNA) binds to the region before the start codon. In bacteria, it is called the shine-delgarno sequence). Then tRNA comes into the p-site in the ribosome and you have base pairing between the mRNA and tRNA. Once this interaction occurs, it causes a conformational change within the tRNA and that releases the amino acid. The amino acids string together to make a protein.[/QUOT thank you so much , but is it necessary to write all this coding and de-coding process of DNA and mRNA ? cant we simply tell all three are built of amon acids and protein in nature ? |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
General Knowledge For PMS | Miss_Naqvi | PCS / PMS | 135 | Thursday, April 04, 2019 02:42 PM |
Tips For Attempting First Question of Composition Paper | Ainuddin Kibzai | Grammar-Section | 9 | Wednesday, June 12, 2013 06:31 PM |
Useful for Geography 2 paper | imran memon | Geography | 0 | Monday, May 21, 2012 03:50 PM |
Solved GK Objectives for PMS..... | Asif Yousufzai | PMS Optional Subjects | 9 | Tuesday, July 05, 2011 08:07 PM |
All about Islamiyat(DMG Officer)-Recommended | Argus | Islamiat | 0 | Monday, March 07, 2005 11:43 AM |