DNA/RNA and Protein Synthesis

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What is DNA?

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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 RNA?

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RNA (Ribonucleic Acid) is a single-stranded molecule that plays a crucial role in the synthesis of proteins. It is involved in translating the genetic information from DNA into proteins.

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What is the process of transcription?

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Transcription is the process by which the information in a DNA sequence is copied into a complementary RNA sequence.

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What is the process of translation?

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Translation is the process by which the sequence of nucleotides in mRNA is used to assemble a sequence of amino acids to form a protein.

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What are the four types of nitrogenous bases in DNA?

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The four nitrogenous bases in DNA are Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).

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What are the four types of nitrogenous bases in RNA?

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The four nitrogenous bases in RNA are Adenine (A), Uracil (U), Cytosine (C), and Guanine (G).

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What is a codon?

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A codon is a sequence of three nucleotides in mRNA that corresponds to a specific amino acid or a stop signal during protein synthesis.

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What is a frameshift mutation?

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A frameshift mutation occurs when nucleotides are added or deleted from the DNA sequence, altering the reading frame and potentially changing all subsequent amino acids.

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What is a missense mutation?

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A missense mutation is a change in a single nucleotide that results in the substitution of one amino acid for another in the protein.

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What is a nonsense mutation?

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A nonsense mutation is a change in a nucleotide that creates a premature stop codon, leading to a truncated and usually nonfunctional protein.