Biology
Grade-8
Easy
Question
In eukaryotic cells, the ____________ are segments of mRNA that are cut out of the final transcript.
- Promoters
- Poly A tails
- Exons
- Introns
Hint:
In eukaryotic cells, the introns are segments of mRNA that are cut out of the final transcript.
The correct answer is: Introns
- An intron is a region that resides within a gene but does not remain in the final mature mRNA molecule following transcription of that gene and does not code for amino acids
- During splicing, the introns are removed from the pre-mRNA, and the exons are stuck together to form a mature mRNA that does not contain the intron sequences. It's only the exons of a gene that encode a protein.
Related Questions to study
Biology
In eukaryotic cells, after transcription, the mRNA
In eukaryotic cells, after transcription, the mRNA
BiologyGrade-8
Biology
In proteins, the α-helix and β-pleated sheet are examples of
In proteins, the α-helix and β-pleated sheet are examples of
BiologyGrade-8
Biology
What does a promoter do?
What does a promoter do?
BiologyGrade-8
Biology
Which of the following are types of post-transcriptional control of genes in eukaryotes?
Which of the following are types of post-transcriptional control of genes in eukaryotes?
BiologyGrade-8
Biology
Which of the following helps to turn genes on so that they are expressed (transcribed and translated)?
Which of the following helps to turn genes on so that they are expressed (transcribed and translated)?
BiologyGrade-8
Biology
___ are DNA sequences that are often located far from the genes they regulate in eukaryotes where transcription activators can bind.
___ are DNA sequences that are often located far from the genes they regulate in eukaryotes where transcription activators can bind.
BiologyGrade-8
Biology
Eukaryotes need to regulate their genes
Eukaryotes need to regulate their genes
BiologyGrade-8
Biology
Negative control of gene expression is mediated by __ and results in a(n) __ in the frequency of transcription.
Negative control of gene expression is mediated by __ and results in a(n) __ in the frequency of transcription.
BiologyGrade-8
Biology
Most gene regulation happens at which step along the way.
Most gene regulation happens at which step along the way.
BiologyGrade-8
Biology
Genes can be shut off (not expressed) when a ___ binds to the ____.
Genes can be shut off (not expressed) when a ___ binds to the ____.
BiologyGrade-8
Biology
For a gene to be expressed, ___ must bind to the gene's ___, a specific sequence of nucleotides at one end of the gene, thus initiating transcription.
For a gene to be expressed, ___ must bind to the gene's ___, a specific sequence of nucleotides at one end of the gene, thus initiating transcription.
BiologyGrade-8
Biology
One way to regulate the expression of a gene is to control the formation of mRNA. This is called ___ control.
One way to regulate the expression of a gene is to control the formation of mRNA. This is called ___ control.
BiologyGrade-8
Biology
Prokaryotes regulate gene expression primarily
Prokaryotes regulate gene expression primarily
BiologyGrade-8
Biology
Which is not the nutrient in GM foods?
Which is not the nutrient in GM foods?
BiologyGrade-8
Biology
Food derived from GMOs is required to be tested for allergic reactions in humans.
Food derived from GMOs is required to be tested for allergic reactions in humans.
BiologyGrade-8
