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Cell Biology Exam 2 Study Guide Questions and Answers (100% Correct Answers) Already Graded A+

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Cell Biology Exam 2 Study Guide Questions and Answers (100% Correct Answers) Already Graded A+

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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.

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