Pratice Protein Synthesis and Mutations

Front

What is protein synthesis?

Back

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

Front

What are the main steps of protein synthesis?

Back

1. Transcription: DNA is transcribed to mRNA. 2. Translation: mRNA is translated into a polypeptide chain (protein) at the ribosome.

Front

What is a mutation?

Back

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

Front

What are the types of mutations?

Back

1. Substitution: One base is replaced by another. 2. Insertion: Extra base pairs are added. 3. Deletion: Base pairs are removed.

Front

What is a substitution mutation?

Back

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

Front

What is a frameshift mutation?

Back

A mutation caused by insertions or deletions that shift the reading frame of the genetic code.

Front

What is the role of mRNA in protein synthesis?

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mRNA carries the genetic information from DNA to the ribosome, where it serves as a template for protein synthesis.

Front

What is a codon?

Back

A sequence of three nucleotides in mRNA that corresponds to a specific amino acid.

Front

What is the start codon?

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AUG, which codes for Methionine and signals the start of translation.

Front

What is the significance of the genetic code?

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It is a set of rules that defines how the sequence of nucleotides in DNA or RNA is translated into amino acids.