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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.
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Ribose Sugar Ans: Sugar in RNA with a hydroxyl group at 2'
Expert
position.
Deoxyribose Sugar Ans: Sugar in DNA lacking hydroxyl group
at 2' position.
Transcription Ans: Process of synthesizing RNA from DNA
template.
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 during
replication.
, 2
Eukaryotic Genes Ans: Genes regulated by multiple
transcriptional factors.
Prokaryotic Genes Ans: Genes regulated primarily by sigma
factors.
Sigma Factor Ans: Protein recognizing promoter sites in
prokaryotes.
TATA Box Ans: Promoter element bound by TBP in eukaryotes.
© 2026 Assignment
7' Methyl Guanosine Ans: Cap added to 5' end of eukaryotic
mRNA.
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Expert
Polyadenylation Ans: Addition of adenine tail to 3' end of
mRNA.
Introns Ans: Non-coding sequences removed from pre-mRNA.
Exons Ans: Coding sequences retained in mature mRNA.
Spliceosome Ans: Complex removing introns from eukaryotic
pre-mRNA.
snRNA Ans: Small nuclear RNA involved in splicing.
Genetic Code Ans: Rules translating nucleotide sequences to
amino acids.
Codons Ans: Triplets of nucleotides coding for amino acids.
Ribosomes Ans: Macromolecular structures synthesizing
proteins from mRNA.
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
Ribose Sugar Ans: Sugar in RNA with a hydroxyl group at 2'
Expert
position.
Deoxyribose Sugar Ans: Sugar in DNA lacking hydroxyl group
at 2' position.
Transcription Ans: Process of synthesizing RNA from DNA
template.
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 during
replication.
, 2
Eukaryotic Genes Ans: Genes regulated by multiple
transcriptional factors.
Prokaryotic Genes Ans: Genes regulated primarily by sigma
factors.
Sigma Factor Ans: Protein recognizing promoter sites in
prokaryotes.
TATA Box Ans: Promoter element bound by TBP in eukaryotes.
© 2026 Assignment
7' Methyl Guanosine Ans: Cap added to 5' end of eukaryotic
mRNA.
Guru01 - Stuvia
Expert
Polyadenylation Ans: Addition of adenine tail to 3' end of
mRNA.
Introns Ans: Non-coding sequences removed from pre-mRNA.
Exons Ans: Coding sequences retained in mature mRNA.
Spliceosome Ans: Complex removing introns from eukaryotic
pre-mRNA.
snRNA Ans: Small nuclear RNA involved in splicing.
Genetic Code Ans: Rules translating nucleotide sequences to
amino acids.
Codons Ans: Triplets of nucleotides coding for amino acids.
Ribosomes Ans: Macromolecular structures synthesizing
proteins from mRNA.
