THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
True
|
|
|
False
|
Detailed explanation-1: -Answer and Explanation: The given statement is false.
Detailed explanation-2: -During the process of splicing, introns are removed from the pre-mRNA by the spliceosome and exons are spliced back together. If the introns are not removed, the RNA would be translated into a nonfunctional protein. Splicing occurs in the nucleus before the RNA migrates to the cytoplasm.
Detailed explanation-3: -Introns are nucleotide sequences in DNA and RNA that do not directly code for proteins, and are removed during the precursor messenger RNA (pre-mRNA) stage of maturation of mRNA by RNA splicing.
Detailed explanation-4: -Introns are the parts of mRNA that are translated. Introns do not code for protein; Introns are included in the final mature RNA after splicing: Introns are added to mature RNA’s after capping and tailing: In general, human genes have fewer introns than genes of bacteria.
Detailed explanation-5: -Intron retention (IR) is an alternative splicing mode whereby introns, rather than being spliced out as usual, are retained in mature mRNAs. It was previously considered a consequence of mis-splicing and received very limited attention.