DNA & Protein Synthesis

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What is DNA?

Back

DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life. It is composed of two strands that coil around each other to form a double helix.

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What is the role of mRNA in protein synthesis?

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mRNA (messenger RNA) serves as a template for protein synthesis, carrying the genetic information from DNA to the ribosome, where proteins are made.

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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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How do mutations affect organisms?

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Mutations can be helpful, harmful, or neutral depending on their effects on the organism's ability to survive and reproduce.

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What is the central dogma of molecular biology?

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The central dogma describes the flow of genetic information from DNA to RNA to protein.

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What are amino acids?

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Amino acids are the building blocks of proteins, and there are 20 different amino acids that combine in various sequences to form proteins.

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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 difference between DNA and RNA?

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DNA contains deoxyribose sugar, is double-stranded, and has thymine (T), while RNA contains ribose sugar, is single-stranded, and has uracil (U) instead of thymine.

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What is transcription?

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Transcription is the process of copying a segment of DNA into mRNA.

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What is translation?

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Translation is the process by which ribosomes synthesize proteins using the information carried by mRNA.