How to Read a Codon Chart

How many nucleotides make up a codon?

• 1

• 3

• 5

• 15

How many codons: AAU GCG AUG

• 9

• 1

• 3

• 15

How many nucleotides? AAU GCG AUG

• 9

• 3

• 1

• 15

ATCAGTGAT A codon is a sequence of three nucleotides that code for an amino acid. If the DNA sequence shown here goes through transcription and translation, how many amino acids will result from this sequence?

• 5
• 4
• 2
• 3

Tags

NGSS.HS-LS1-1

DNA: AAA CCC GGG
What is the transcribed mRNA?

• TTT GGG CCC
• UUU GGG CCC
• UUU CCC GGG
• TTT CCC GGG

CTA mutates to TTA. What changes?

• Asp becomes Asn

• Serine is made instead of proline.

• It becomes unreadable.

• Nothing, it's still the same amino acid.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

According to this corner of the codon chart, what amino acid does "CCG" code for?

• Pro (proline)

• Leu (leucine)

• Ser (serine)

• Phe (phenyline)

If a "STOP" codon is accidentally created in the middle of an mRNA, what will happen?

• The ribosome will stop reading the mRNA at the STOP
• The ribosome knows to skip over the STOP and keep translating
• The ribosome never starts translating the mRNA to start with
• The ribosome explodes

What amino acid would the DNA TTT get you?

• LYS

• PHE

• VAL

• NONE

Tags

NGSS.HS-LS1-1

What amino acid does the mRNA AGG get?

• SER

• ARG

• VAL

• PRO