IB Biology Topic D1.2.7 Complementary Base Pairing Between Trna and Mrna Revision Notes (SL/HL)

IB Biology Topic D1.2.7 Complementary Base Pairing Between Trna and Mrna Revision Notes (SL/HL) | RevisionDojo

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A tRNA anticodon binds its mRNA codon by complementary antiparallel base pairing, and this is what guarantees the right amino acid is added

An mRNA codon is a triplet of three bases that specifies one amino acid, and a tRNA anticodon is the matching triplet that reads it.
The anticodon pairs with the codon by complementary antiparallel base pairing, the same rule that holds the two strands of DNA together.
Because each tRNA carries only one specific amino acid, matching the anticodon to the codon is what places the correct amino acid into the growing polypeptide.

Codons and anticodons are complementary triplets read in opposite directions

Definition

Codon

A codon is a sequence of three nucleotides in DNA or RNA that specifies a particular amino acid or a start/stop signal during protein synthesis.

Definition

Anticodon

An anticodon is a sequence of three nucleotides on a transfer RNA (tRNA) molecule that is complementary to a codon on a messenger RNA (mRNA) strand.

The codon is carried on the mRNA, while the anticodon sits on the anticodon loop of the tRNA.
The two triplets are antiparallel, so a codon read 5' to 3' pairs with an anticodon aligned 3' to 5'.

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Lorem ipsum dolor sit amet, consectetur adipiscing elit.
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Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
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A tRNA anticodon binds its mRNA codon by complementary antiparallel base pairing, and this is what guarantees the right amino acid is added

An mRNA codon is a triplet of three bases that specifies one amino acid, and a tRNA anticodon is the matching triplet that reads it.
The anticodon pairs with the codon by complementary antiparallel base pairing, the same rule that holds the two strands of DNA together.
Because each tRNA carries only one specific amino acid, matching the anticodon to the codon is what places the correct amino acid into the growing polypeptide.

Codons and anticodons are complementary triplets read in opposite directions

Definition

Codon

A codon is a sequence of three nucleotides in DNA or RNA that specifies a particular amino acid or a start/stop signal during protein synthesis.

Definition

Anticodon

An anticodon is a sequence of three nucleotides on a transfer RNA (tRNA) molecule that is complementary to a codon on a messenger RNA (mRNA) strand.

The codon is carried on the mRNA, while the anticodon sits on the anticodon loop of the tRNA.
The two triplets are antiparallel, so a codon read 5' to 3' pairs with an anticodon aligned 3' to 5'.

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 D1.2.7: Complementary Base Pairing Between Trna and Mrna Notes

A tRNA anticodon binds its mRNA codon by complementary antiparallel base pairing, and this is what guarantees the right amino acid is added

Codons and anticodons are complementary triplets read in opposite directions

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 tRNA anticodon binds its mRNA codon by complementary antiparallel base pairing, and this is what guarantees the right amino acid is added

Codons and anticodons are complementary triplets read in opposite directions

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