Protein Synthesis, Mutations, and Gene Expression

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What is protein synthesis?

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The process by which cells generate new proteins, involving transcription of DNA to mRNA and translation of mRNA to amino acids.

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Where does translation occur in the cell?

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At the ribosome, which is located in the cytoplasm.

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What is a mutation?

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A change in the DNA sequence that can lead to changes in protein structure and function.

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What is a deletion mutation?

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A type of mutation where a part of a chromosome is removed or deleted.

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What is a substitution mutation?

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A point mutation where one nucleotide base is replaced by another, potentially altering the amino acid sequence.

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What is transcription?

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The process of copying a segment of DNA into RNA, specifically mRNA, which carries the genetic information to the ribosome.

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What is the role of mRNA in protein synthesis?

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mRNA serves as a template for assembling amino acids into proteins during translation.

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What is the genetic code?

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The set of rules by which information encoded in mRNA is translated into proteins, consisting of codons that correspond to specific amino acids.

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What is a point mutation?

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A mutation that affects a single nucleotide in the DNA sequence.

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What is the difference between chromosomal mutations and gene mutations?

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Chromosomal mutations involve changes to the structure or number of chromosomes, while gene mutations affect the sequence of nucleotides in a single gene.