
A.1.2.11 Directionality
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•
Biology
•
12th Grade
•
Easy
Carolyn Hudson
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13 questions
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1.
FLASHCARD QUESTION
Front
What links nucleotides in a strand of DNA or RNA?
Back
The phosphate group of one nucleotide is linked to the pentose sugar of the next nucleotide.
2.
FLASHCARD QUESTION
Front
What is the 3' terminal in a DNA or RNA strand?
Back
The 3' terminal is where the pentose sugar of the nucleotide is unlinked, with C3 available for linkage to another nucleotide.
3.
FLASHCARD QUESTION
Front
What is the 5' terminal in a DNA or RNA strand?
Back
The 5' terminal is where the phosphate group of the nucleotide is unlinked, attached to C5 of the pentose sugar.
4.
FLASHCARD QUESTION
Front
How does the directionality of DNA and RNA affect biological processes?
Back
Directionality affects replication, transcription, and translation, as strands and nucleotides must face the correct direction to fit enzyme active sites.
5.
FLASHCARD QUESTION
Front
In which direction does DNA replication occur?
Back
DNA replication occurs in the 5' to 3' direction.
6.
FLASHCARD QUESTION
Front
In which direction does transcription occur?
Back
Transcription occurs in the 5' to 3' direction.
7.
FLASHCARD QUESTION
Front
In which direction does translation occur?
Back
Translation occurs in the 5' to 3' direction.
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