Universal Genetic Code

The genetic code (using A,T,C,G) is a universal code

• True

• False

DNA is related to

• Carbohydrates

• Photosynthesis

• Cellular Respiration

• Genetics

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In a biology class, the teacher explained that all living organisms contain a universal "code". This "code" is known as:

• CDC

• DNA

• CNA

• ABC

Tags

NGSS.HS-LS1-1

The genetic code is considered universal; what does this mean?

• An amino acid can be specified by more than one codon.

• Each codon codes for the same amino acid in nearly all organisms.

• Each codon corresponds to a unique amino acid.

• The sequence of bases in all organisms is the same.

Use your codon chart to match the mRNA CUU to the correct amino acid

• VAL

• TYR

• LEU

• PHE

Which amino acid is made from the codon ACC?

Applying the Genetic Code

AAG​ (a)   ​​

CUC​ ​ (b)  

CAC​ ​ (c)  

UAG​ (d)  

• Stop

• arginine

• asparagine

• cysteine

• lysine

• valine

• leucine

• histidine

• methionine

• serine

Tags

NGSS.HS-LS1-1

Use your codon chart to find the amino acid that codes for the mRNA codon GCA

• Thr

• Ala

• Pro

• Ser

Applying the Genetic Code

AUG​​ (a)  

GCU​ (b)  

UCC​ (c)  

ACG​ (d)  

UAG​ (e)  

• methionine

• alanine

• serine

• threonine

• Stop

• arginine

• asparagine

• cysteine

• lysine

• valine

Tags

NGSS.HS-LS1-1

What amino acids would be coded for if the short region of DNA has the sequence TACCAACCCGAT?

• Met-Val-Gly-Leu

• Ala-Asp-Pro-Asp

• Gly-Arg-Gly-Asp

• Leu-Gly-Val-Met

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6