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Cell Biology Exam 2 Study Guide
Questions and Answers (100%
Correct Answers) Already Graded A+
RNA Ans: Single-stranded nucleic acid with uracil base.
© 2026 Assignment
DNA Ans: Double-stranded nucleic acid with thymine base.
Guru01 - Stuvia
Transcription Ans: Process of synthesizing RNA from DNA.
Expert
RNA Polymerase Ans: Enzyme synthesizing RNA without a
primer.
DNA Polymerase Ans: Enzyme synthesizing DNA requiring a
primer.
Primase Ans: Enzyme synthesizing RNA primer for DNA
replication.
Helicase Ans: Enzyme unwinding DNA strands for replication.
Eukaryotic Genes Ans: Genes regulated by diverse
transcription factors.
Prokaryotic Genes Ans: Genes typically organized in operons.
Sigma Factor Ans: Prokaryotic protein recognizing DNA
promoter sites.
TATA Box Ans: Promoter element bound by TBP in eukaryotes.
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Spliceosome Ans: Complex removing introns from eukaryotic
mRNA.
Introns Ans: Non-coding sequences removed from mRNA.
Exons Ans: Coding sequences retained in mature mRNA.
Alternative Splicing Ans: Process generating multiple proteins
from one gene.
© 2026 Assignment
Genetic Code Ans: Rules translating nucleotide sequences into
amino acids.
Guru01 - Stuvia
Expert
Codons Ans: Triplet nucleotide sequences coding for amino
acids.
Stop Codons Ans: Signals termination of protein synthesis.
Ribosomes Ans: Macromolecular structures synthesizing
proteins.
Peptidyl Transferase Ans: Ribosomal activity forming peptide
bonds.
Polycistronic RNA Ans: Prokaryotic mRNA coding for multiple
proteins.
5' Cap Ans: Modified guanine added to mRNA's 5' end.
Polyadenylation Ans: Addition of adenine tails to mRNA's 3'
end.
tRNA Ans: Transfer RNA bringing amino acids to ribosomes.
Cell Biology Exam 2 Study Guide
Questions and Answers (100%
Correct Answers) Already Graded A+
RNA Ans: Single-stranded nucleic acid with uracil base.
© 2026 Assignment
DNA Ans: Double-stranded nucleic acid with thymine base.
Guru01 - Stuvia
Transcription Ans: Process of synthesizing RNA from DNA.
Expert
RNA Polymerase Ans: Enzyme synthesizing RNA without a
primer.
DNA Polymerase Ans: Enzyme synthesizing DNA requiring a
primer.
Primase Ans: Enzyme synthesizing RNA primer for DNA
replication.
Helicase Ans: Enzyme unwinding DNA strands for replication.
Eukaryotic Genes Ans: Genes regulated by diverse
transcription factors.
Prokaryotic Genes Ans: Genes typically organized in operons.
Sigma Factor Ans: Prokaryotic protein recognizing DNA
promoter sites.
TATA Box Ans: Promoter element bound by TBP in eukaryotes.
, 2
Spliceosome Ans: Complex removing introns from eukaryotic
mRNA.
Introns Ans: Non-coding sequences removed from mRNA.
Exons Ans: Coding sequences retained in mature mRNA.
Alternative Splicing Ans: Process generating multiple proteins
from one gene.
© 2026 Assignment
Genetic Code Ans: Rules translating nucleotide sequences into
amino acids.
Guru01 - Stuvia
Expert
Codons Ans: Triplet nucleotide sequences coding for amino
acids.
Stop Codons Ans: Signals termination of protein synthesis.
Ribosomes Ans: Macromolecular structures synthesizing
proteins.
Peptidyl Transferase Ans: Ribosomal activity forming peptide
bonds.
Polycistronic RNA Ans: Prokaryotic mRNA coding for multiple
proteins.
5' Cap Ans: Modified guanine added to mRNA's 5' end.
Polyadenylation Ans: Addition of adenine tails to mRNA's 3'
end.
tRNA Ans: Transfer RNA bringing amino acids to ribosomes.
