Gene Expression, Protein Synthesis and Mutations

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What is gene expression?

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Gene expression is the process by which information from a gene is used to synthesize a functional gene product, typically a protein.

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What is protein synthesis?

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Protein synthesis is the process by which cells build proteins based on the genetic instructions carried by mRNA.

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What is a mutation?

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A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

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What is a silent mutation?

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A silent mutation is a type of mutation that does not change the amino acid sequence of a protein, thus having no effect on its function.

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What is tRNA?

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tRNA (transfer RNA) is a type of RNA that helps decode mRNA into a protein by carrying amino acids to the ribosome.

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What is the role of mRNA in protein synthesis?

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mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where proteins are synthesized.

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What is the nucleus?

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The nucleus is the membrane-bound organelle in eukaryotic cells that contains the cell's genetic material (DNA).

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What is a codon?

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A codon is a sequence of three nucleotides in mRNA that specifies a particular amino acid.

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What is the function of DNA?

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DNA holds the genetic code that determines the structure and function of proteins in an organism.

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What is an insertion mutation?

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An insertion mutation is a type of mutation where one or more nucleotide bases are added to the DNA sequence.