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pre mRNA contains the same things as mRNA
- phosphates
-uracil, adenine, guanine, cytosine
-ribose sugar
-hydrogen bonds
-covalent bonds
-GTP cap
-Poly A tail
However, pre mRNA is different because it still contains introns and exons, while mRNA only contains exons
introns code for things which are no longer expressed as traits, and therefore are not translated, they are instead removed by splicesomes
exons code for the traits expressed and therefore are not removed and are expressed
What else can I help you with?
When isolation the gene why is better to obtain its mRNA?
mRNA does not contain introns (the original DNA does). These are sections which do not code for a functional product - such as a protein. Using mRNA you can deduce what the final (protein) product will be. It also allows you to create cDNA - which is used for storage.
What carry instructions for making proteins?
mRNA
What molecules contain the codons?
Codons are found in mRNA molecules, which are transcribed from DNA molecules during protein synthesis. Each codon corresponds to a specific amino acid or a signal for the start or end of protein synthesis.
What is the scientific term for writing the mRNA message in a cell?
The creation of mRNA is called transcription. mRNA is being transcribed from the DNA template.
What is the stop codon in most molecules of mRNA?
stop codon on mRNA
Does mRNA contain thymine in its nucleotide sequence?
No, mRNA does not contain thymine in its nucleotide sequence. Instead, mRNA contains uracil in place of thymine.
Does mRNA contain uracil or thymine in its nucleotide sequence?
mRNA contains uracil in its nucleotide sequence, not thymine.
What is removed from pre-mRNA during RNA processing?
In RNA processing, introns are removed from pre-mRNA to generate mature mRNA. Introns are non-coding regions of the pre-mRNA that do not contain instructions for protein synthesis. The remaining exons are spliced together to form the mature mRNA that can be translated into a protein.
Why do eukaryotic organisms transcribe intron regions when making mRNA molecules?
Eukaryotic organisms transcribe intron regions when making mRNA molecules because they contain important regulatory sequences that help in the processing and splicing of the mRNA to produce a functional and mature mRNA molecule for protein synthesis.
What molecule contain anticodons?
The tRNA gene sequence is the anti-codon while mRNA is the codon sequence.
Which two structures contain codons and anticodons?
Codons are found in mRNA molecules, which are involved in protein synthesis during translation. Anticodons, on the other hand, are found in tRNA molecules, which are responsible for carrying amino acids to the ribosome based on the mRNA codons.
Which of the following statements regarding cDNA libraries is false?
a. They are usually double stranded DNA. b. They are composed of DNA synthesized with the use of reverse transcriptase. c. They are composed of DNA synthesized from an mRNA template. d. They contain introns and exons. e. They contain DNA that is complementary to the mRNA from which it was synthesized.
What are the sense portions of a pre-mRNA strand made in transcription called?
The sense portions of a pre-mRNA strand made in transcription are called exons. Exons contain the coding sequences that will be eventually translated into proteins. Non-coding sequences within the pre-mRNA, called introns, are removed during RNA processing to produce the mature mRNA molecule.
What does failure to remove introns from a primary mRNA most likely cause?
Failure to remove introns from a primary mRNA during mRNA processing will likely result in the production of a non-functional or defective protein. This is because introns are non-coding sequences that need to be removed to produce a mature and functional mRNA for translation. If the introns are not removed, the resulting mRNA will contain incorrect coding information, leading to errors in the protein synthesis process.
When isolation the gene why is better to obtain its mRNA?
mRNA does not contain introns (the original DNA does). These are sections which do not code for a functional product - such as a protein. Using mRNA you can deduce what the final (protein) product will be. It also allows you to create cDNA - which is used for storage.
If an mRNA is made up of 60 bases how many codons does it contain and how many amino acid does it code for?
A codon is exactly three bases long, so an mRNA strand with 60 bases would contain 20 codons. The first codon will encode for methionine (this is called the "start" codon) and the last codon will be a "stop" codon, which does not encode for an amino acid. Thus, an mRNA strand of 60 bases will code for 19 amino acids. Keep in mind, it is possible for a stop codon to be anywhere on the mRNA strand, and when a stop codon reaches the ribosome, translation must stop. For example, if an mRNA strand contained 30 codons, and the 15th were a stop codon, the mRNA would only code for 14 amino acids and then be done. The other 15 codons would go untranslated.
What carry instructions for making proteins?
mRNA
