Name: Score:
20 Multiple choice questions
Definition 1 of 20
A large complex made up of proteins and RNA molecules that splices RNA by interacting with the
ends of an RNA intron, releasing the iron and joining the two adjacent exons.
Rna Splicing
Spliceosome
Ribosomes
Mutation
Definition 2 of 20
An initial RNA transcript from any gene; also called pre-mRNA when transcribed from a protein-
coding gene.
Exon
Primary transcript
Intron
Transcription unit
Definition 3 of 20
A mutational loss of one or more nucleotide pairs from a gene.
Insertion
Point Mutation
Deletion
Frameshift Mutation
, Definition 4 of 20
A chemical or physical agent that interacts with DNA and can cause a mutation.
Mutation
Mutagens
Anticodon
Frameshift Mutation
Definition 5 of 20
A complex of rRNA and protein molecules that functions as a site of protein synthesis in the
cytoplasm; consists of a large subunit and a small subunit. In eukaryotic cells, each subunit is
assembled in the nucleolus.
Transcription
Lysosomes
Ribosomes
Mitochondria
Definition 6 of 20
A change in the nucleotide sequence of an organism's DNA or in the DNA or RNA of a virus.
Mutation
Translation
Transcription
Deletion
20 Multiple choice questions
Definition 1 of 20
A large complex made up of proteins and RNA molecules that splices RNA by interacting with the
ends of an RNA intron, releasing the iron and joining the two adjacent exons.
Rna Splicing
Spliceosome
Ribosomes
Mutation
Definition 2 of 20
An initial RNA transcript from any gene; also called pre-mRNA when transcribed from a protein-
coding gene.
Exon
Primary transcript
Intron
Transcription unit
Definition 3 of 20
A mutational loss of one or more nucleotide pairs from a gene.
Insertion
Point Mutation
Deletion
Frameshift Mutation
, Definition 4 of 20
A chemical or physical agent that interacts with DNA and can cause a mutation.
Mutation
Mutagens
Anticodon
Frameshift Mutation
Definition 5 of 20
A complex of rRNA and protein molecules that functions as a site of protein synthesis in the
cytoplasm; consists of a large subunit and a small subunit. In eukaryotic cells, each subunit is
assembled in the nucleolus.
Transcription
Lysosomes
Ribosomes
Mitochondria
Definition 6 of 20
A change in the nucleotide sequence of an organism's DNA or in the DNA or RNA of a virus.
Mutation
Translation
Transcription
Deletion
