PS & Mutations

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence of an organism's genome.

Front

What are the types of mutations?

Back

The main types of mutations are substitution, insertion, deletion, and duplication.

Front

What is a substitution mutation?

Back

A substitution mutation occurs when one nucleotide in the DNA sequence is replaced by another nucleotide.

Front

What is the result of a deletion mutation?

Back

A deletion mutation results in the loss of one or more nucleotides from the DNA sequence.

Front

What is an insertion mutation?

Back

An insertion mutation occurs when one or more nucleotides are added into the DNA sequence.

Front

What is gene expression?

Back

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

Front

What is transcription?

Back

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

Front

What is mRNA?

Back

mRNA (messenger RNA) is a type of RNA that carries the genetic information from DNA to the ribosome for protein synthesis.

Front

What is a codon?

Back

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

Front

What is the role of tRNA?

Back

tRNA (transfer RNA) is responsible for bringing amino acids to the ribosome during protein synthesis.