WorksheetsQuiz on mRNA Processing
Total questions: 12
Worksheet time: 6mins
What happens to mRNA at the end of transcription before it leaves the nucleus?
It is translated into protein.
Introns are removed, and exons are spliced together.
It is degraded by enzymes.
It is converted into DNA.
What is the function of exons in mRNA?
They are noncoding regions.
They are coding regions for proteins.
They are involved in DNA replication.
They are responsible for mRNA degradation.
What is the role of tRNA during the process of translation?
It brings amino acids to the ribosomes.
It carries the genetic code from DNA.
It forms the structure of ribosomes.
It synthesizes mRNA.
Where do matching anticodons on tRNA molecules bind during translation?
P site
E site
A site
mRNA binding site
What happens to tRNA after its amino acid is dropped off?
It moves to the P site.
It moves to the E site and leaves.
It stays in the A site.
It is degraded immediately.
When does the process of translation stop?
When a start codon is reached.
When a stop codon is reached.
When the ribosome is full.
When all tRNA molecules are used.
What happens once the stop codon is reached in protein synthesis?
The amino acid chain is released and folded.
The amino acid chain is destroyed.
The amino acid chain is duplicated.
The amino acid chain is shortened.
What is added to the 3' end of mRNA during editing within the nucleus?
Guanine cap
Poly A tail
Introns
Start codon
Where is mRNA sent after being edited in the nucleus?
Golgi apparatus
Mitochondria
Cytoplasm and ribosome
Nucleus
What is the role of tRNA in the ribosome?
To edit mRNA
To create a stop codon
To read mRNA and create an amino acid strand
To disassemble the ribosome complex
What happens when a stop codon is reached during translation?
mRNA is edited
Ribosome complex disassembles
Start codon is found
Amino acid chain is folded
Where can the amino acid chain be folded after translation?
In the nucleus
In the Golgi apparatus
In the membrane of RER or in the cytoplasm
In the mitochondria
