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Gene Expression

Horizontales
An RNA molecule that has catalytic activity
The number of 3-base sequences in the standard genetic code
A sequence of nucleic acid that marks the end of transcription
Parts of a gene that code for protein; are found in the mature mRNA
Segments of a nucleic acid molecule which are capable of increasing or decreasing the expression of specific genes within a cell
During transcription, the DNA strand with the same sequence as the transcribed mRNA (given U in RNA and T in DNA)
Parts of a gene that do not code for protein; are not retained in the mature mRNA
The modification made at the 5' end of mRNA in eukaryotes
The _______ factor is involved in terminating protein synthesis
Proteins that help turn specific genes "on" or "off" by binding to nearby sequences on the DNA molecule
A cluster of ribosomes held together by a single mRNA molecule that each ribosome is synthesizing proteins from
The ribonucleoprotein complex responsible for removal of intragenic regions from mature mRNA in eukaryotes
The three-base sequence in tRNA complementary to a corresponding sequence on mRNA
A transfer RNA molecule to which an amino acid is attached
In eukaryotes, the mature mRNA molecule has a _____ _____ at its 3' end
Typically, the first amino acid produced in a nascent polypeptide during protein synthesis in eukaryotes
Verticales
One of the three binding sites for tRNA on the ribosome
In the standard genetic code, AUG normally serves as the ______ ______
A sequence of nucleic acid that RNA polymerase binds to during transcription initiation
The activity responsible for peptide bond formation during protein synthesis
A three-base sequence of the genetic code
Three-base sequences that mark the termination of protein synthesis are termed ______ codons
The C terminus of a polypeptide chain
A contiguous and non-overlapping set of codons; 3 possible ones exist in an mRNA molecule
The process of protein synthesis
During transcription, the DNA strand that is actually copied to make mRNA
The RNA molecule that carries the codons
The genetic code is said to be _______ because in most cases, different codons specify the same amino acid
The enzyme that attaches an amino acid to its cognate tRNA(s) is termed _______-tRNA synthetase
One of the three binding sites for tRNA on the ribosome