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WorksheetsGene expression
Total questions: 12
Worksheet time: 9mins
What is an Intron?
a segment of a structural gene that is transcribed but not translated. It gets cut out and not used
in a sturctural gene, one of the segments that are ultimately transcribe and translated when the gene is expressed
a regulatory protein that bins to DNA and stimulates the transcription of certain genes
Three-nucleotide sequence on messenger RNA that codes for a single amino acid
Codon
Three-nucleotide sequence on messenger RNA that codes for a single amino acid.
The group of three base on the tRNA molecule that are complementary to an mRNA codon.
makes up the major part of ribosomes
ATG TGA CAG?
In what direction is a trancript made?
3' to 5'
5' to 3'
3' to 3'
5' to 5'
Genes can code for multiple proteins, which is why cells can undergo alternative RNA splicing.
True
False
In what direction is mRNA made?
5' --> 3'
3' --> 5'
5' --> 3' and 3' --> 5'
5' --> 5' and 3' --> 3'
Prokaryotic DNA does not contain introns.
TRUE
FALSE
Transfer RNA (tRNA)
makes up the major part of ribosomes
Transfers amino acids to ribosomes during protein synthesis
The process of making an RNA copy of a gene sequence
Messanger RNA (mRNA)
The process of translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis.
An enzyme that synthesizes the formation of RNA from a DNA template during transcription.
RNA molecule that carries copies of instructions for the assembly of amino acids into proteins from DNA to the rest of the cell
a unit of three nucleotides in mRNA that code for amino acid
how many amino acids are there
