Exam 4 Licata Bio 1201 LSU Questions With
Correct Answers
Transcription (genetics) the organic process whereby the DNA sequence in a gene is
copied into mRNA
Translation Process by which mRNA is decoded and a protein is produced
codon A specific sequence of three adjacent bases on a strand of DNA or RNA that
provides genetic code information for a particular amino acid
promoter specific region of a gene where RNA polymerase can bind and begin
transcription
RNA transcript RNA molecule produced by transcription that is complementary to one
strand of DNA
RNA polymerase Enzyme similar to DNA polymerase that binds to DNA and separates
the DNA strands during transcription
What direction is RNA synthesized 5' to 3'
,TATA box A promoter DNA sequence crucial in forming the transcription initiation
complex.
Transcription factors Collection of proteins that mediate the binding of RNA polymerase
and the initiation of transcription.
What is added in RNA processing? 5' cap and poly-A tail
RNA splicing Process by which the introns are removed from RNA transcripts and the
remaining exons are joined together.
spliceosome cut out introns and have snRNP inside
pre-mRNA a form of messenger RNA that contains both introns and exons
tRNA transfer RNA; type of RNA that carries amino acids to the ribosome
What are tRNAs held together by? Hydrogen bonds
Anticodon group of three bases on a tRNA molecule that are complementary to an mRNA
codon
, aminoacyl-tRNA synthetase During protein synthesis, an enzyme that attaches the correct
amino acid to a tRNA molecule to form a "charged" aminoacyl-tRNA.
Ribosome Anatomy APE
where are the amino acids bonded together in the ribosome P slot
GTP A nucleotide composed of guanine, ribose, and three linked phosphate groups. It is
incorporated into the growing RNA chain during synthesis of RNA and used as a source of
energy during synthesis of proteins
elongation (translation) codon recognition, peptide bond formation, translocation
termination of translation - occurs when the codon in A-site is a stop codon
- release factor places a water molecule on the polypeptide chain and thus releases the protein
polyribosome string of ribosomes simultaneously translating regions of the same mRNA
strand during protein synthesis
SRP signal recognition particle; attaches to signal peptide and brings it anywhere;
mailman
Correct Answers
Transcription (genetics) the organic process whereby the DNA sequence in a gene is
copied into mRNA
Translation Process by which mRNA is decoded and a protein is produced
codon A specific sequence of three adjacent bases on a strand of DNA or RNA that
provides genetic code information for a particular amino acid
promoter specific region of a gene where RNA polymerase can bind and begin
transcription
RNA transcript RNA molecule produced by transcription that is complementary to one
strand of DNA
RNA polymerase Enzyme similar to DNA polymerase that binds to DNA and separates
the DNA strands during transcription
What direction is RNA synthesized 5' to 3'
,TATA box A promoter DNA sequence crucial in forming the transcription initiation
complex.
Transcription factors Collection of proteins that mediate the binding of RNA polymerase
and the initiation of transcription.
What is added in RNA processing? 5' cap and poly-A tail
RNA splicing Process by which the introns are removed from RNA transcripts and the
remaining exons are joined together.
spliceosome cut out introns and have snRNP inside
pre-mRNA a form of messenger RNA that contains both introns and exons
tRNA transfer RNA; type of RNA that carries amino acids to the ribosome
What are tRNAs held together by? Hydrogen bonds
Anticodon group of three bases on a tRNA molecule that are complementary to an mRNA
codon
, aminoacyl-tRNA synthetase During protein synthesis, an enzyme that attaches the correct
amino acid to a tRNA molecule to form a "charged" aminoacyl-tRNA.
Ribosome Anatomy APE
where are the amino acids bonded together in the ribosome P slot
GTP A nucleotide composed of guanine, ribose, and three linked phosphate groups. It is
incorporated into the growing RNA chain during synthesis of RNA and used as a source of
energy during synthesis of proteins
elongation (translation) codon recognition, peptide bond formation, translocation
termination of translation - occurs when the codon in A-site is a stop codon
- release factor places a water molecule on the polypeptide chain and thus releases the protein
polyribosome string of ribosomes simultaneously translating regions of the same mRNA
strand during protein synthesis
SRP signal recognition particle; attaches to signal peptide and brings it anywhere;
mailman
