IB Biology Topic D1.2.12 Directionality of Transcription and Translation Revision Notes (HL)

IB Biology Topic D1.2.12 Directionality of Transcription and Translation Revision Notes (HL) | RevisionDojo

Written by official IB examiners

Transcription and translation both run 5' to 3', which keeps the genetic message in the right order

Nucleic acids are read and built in one fixed direction, described as 5' to 3'.
This fixed direction is what lets genetic information be copied and translated accurately.

The 5' and 3' labels come from the carbon atoms of the sugar

Nucleic acids like DNA and RNA have a direction because each nucleotide is asymmetric.
A phosphate group is attached to the 5' carbon of the sugar.
A hydroxyl group (-OH) is attached to the 3' carbon.

Analogy

Picture a train track where one end is the start (5') and the other is the destination (3').
The train, which stands for the enzyme, can only travel one way.

RNA polymerase builds RNA by adding nucleotides to the 3' end

During transcription, RNA polymerase reads the DNA template strand and builds a complementary RNA strand.

Nice try, unfortunately this paywall isn't as easy to bypass as you think. Want to help devleop the site? Join the team at https://revisiondojo.com/join-us. exercitation voluptate cillum ullamco excepteur sint officia do tempor Lorem irure minim Lorem elit id voluptate reprehenderit voluptate laboris in nostrud qui non Lorem nostrud laborum culpa sit occaecat reprehenderit

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit.

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

Unlock the rest of this chapter with a free account

Transcription and translation both run 5' to 3', which keeps the genetic message in the right order

Nucleic acids are read and built in one fixed direction, described as 5' to 3'.
This fixed direction is what lets genetic information be copied and translated accurately.

The 5' and 3' labels come from the carbon atoms of the sugar

Nucleic acids like DNA and RNA have a direction because each nucleotide is asymmetric.
A phosphate group is attached to the 5' carbon of the sugar.
A hydroxyl group (-OH) is attached to the 3' carbon.

Analogy

Picture a train track where one end is the start (5') and the other is the destination (3').
The train, which stands for the enzyme, can only travel one way.

RNA polymerase builds RNA by adding nucleotides to the 3' end

During transcription, RNA polymerase reads the DNA template strand and builds a complementary RNA strand.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

IB Biology Topic D1.2.12: Directionality of Transcription and Translation Notes

Transcription and translation both run 5' to 3', which keeps the genetic message in the right order

The 5' and 3' labels come from the carbon atoms of the sugar

RNA polymerase builds RNA by adding nucleotides to the 3' end

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Transcription and translation both run 5' to 3', which keeps the genetic message in the right order

The 5' and 3' labels come from the carbon atoms of the sugar

RNA polymerase builds RNA by adding nucleotides to the 3' end

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics