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प्रश्न
An operon is a ______.
पर्याय
Protein that suppresses gene expression.
Protein that accelerates gene expression.
Cluster of structural genes with related function.
Gene that switches other genes on or off
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उत्तर
An operon is a cluster of structural genes with related functions.
Explanation:
An operon is a functional unit of DNA that contains a cluster of genes that are transcribed together into a single mRNA strand. This arrangement allows the cell to regulate a set of proteins with related metabolic functions, such as the enzymes needed to break down lactose, simultaneously. It typically consists of a promoter, an operator, and the structural genes themselves.
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संबंधित प्रश्न
List two essential roles of ribosomes during translation.
Ribosomes are composed of two subunits; the smaller subunit of a ribosome has a binding site for _________ and the larger subunit has two binding sites for two __________.
UTRs are the untranslated regions present on ______.
Regulation of gene expression occurs at the level of ______.
Which of the following are correct statements for a tRNA molecule?
- It is an adapter molecule.
- Previously called sRNA (soluble RNA)
- tRNA has a codon loop that has bases complementary to the code,
- it also has an amino acid accepter end to which it binds to amino acids.
- It is non-specific for each amino acid.
The process of translation is ______.
Explain the process of aminoacylation of tRNA and its role in the process of translation.
Which molecule acts as the template for translation?
Which enzyme is responsible for activating amino acids and attaching them to the correct tRNA?
During the elongation stage of translation, what ensures that the correct amino acid is placed in the sequence?
