
DC Biology Ch. 18 HW
Flashcard
•
Biology
•
12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is DNA methylation?
Back
DNA methylation is a mechanism that condenses chromatin and can lead to the long-term inactivation of genes during development.
2.
FLASHCARD QUESTION
Front
What binds to DNA enhancer regions to stimulate transcription?
Back
Activator proteins bind to DNA enhancer regions to stimulate transcription.
3.
FLASHCARD QUESTION
Front
What are proteasomes?
Back
Proteasomes are enzyme complexes that break down proteins.
4.
FLASHCARD QUESTION
Front
How do miRNAs control gene expression?
Back
miRNAs control gene expression by binding to mRNAs and degrading them or blocking their translation.
5.
FLASHCARD QUESTION
Front
What are cytoplasmic determinants?
Back
Cytoplasmic determinants are maternal substances in the egg that influence the course of early development.
6.
FLASHCARD QUESTION
Front
What is the role of RNA polymerase in transcription?
Back
RNA polymerase is the enzyme that synthesizes RNA from a DNA template during transcription.
7.
FLASHCARD QUESTION
Front
What are transcription factors?
Back
Transcription factors are proteins that help regulate the transcription of specific genes by binding to nearby DNA.
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