What is transcription in the context of molecular biology?
AP Bio - 3rd Six Weeks Exam 24-25 - 17 Dec 24

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Biology
•
12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Transcription is the process by which the information in a DNA sequence is copied into a complementary RNA sequence, specifically mRNA.
2.
FLASHCARD QUESTION
Front
Define heterochromatin.
Back
Heterochromatin is a tightly packed form of DNA, also known as condensed DNA, which is generally transcriptionally inactive.
3.
FLASHCARD QUESTION
Front
What is mismatch repair in DNA replication?
Back
Mismatch repair is a form of DNA repair in which non-complementary nucleotides are recognized, excised, and replaced with correct nucleotides.
4.
FLASHCARD QUESTION
Front
True or False: Enzymes are involved in DNA replication, and helicase unwinds mRNA strands.
Back
False. Helicase unwinds DNA strands, not mRNA.
5.
FLASHCARD QUESTION
Front
What role does ligase play in DNA replication?
Back
Ligase is an enzyme that joins DNA fragments on the lagging strand during DNA replication.
6.
FLASHCARD QUESTION
Front
What is the primary function of RNA polymerase?
Back
RNA polymerase is the enzyme responsible for synthesizing RNA from a DNA template during transcription.
7.
FLASHCARD QUESTION
Front
Explain the difference between DNA and RNA.
Back
DNA is double-stranded and contains deoxyribose sugar, while RNA is single-stranded and contains ribose sugar.
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