13.2: The Genetic Code

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/6

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

7 Terms

1
New cards

genetic code

informational key in which mRNA sequence can be translated into sequence of amino acids to create the protein expressed by the gene

2
New cards

codon

triplet code - sequence of 3 nucleotides in mRNA that specifies a single amino acid in protein

3
New cards

why is genetic code redundant but not ambiguous

multiple codons code for the same amino acid. not ambiguous because each codon codes for only specific amino acid

4
New cards

start codon

AUG - signals the beginning of translation - codes for methionine.

5
New cards

stop codon

UAA, UAG, and UGA - signals termination of protein synthesis

6
New cards

structure of tRNA

Di typical secondary structure with an anticodon that’s complementary to mRNA codon

  • 3’ end where amino acids attach - each tRNA carries a specific amino acid that corresponds to anticodon = when attached tRNA is charged

  • no tRNA corresponds to any stop codons

7
New cards

open reading frame

region of DNA sequence that can be translated into a protein - continuous sequence of codons starting with a start codon and ending with stop codon