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Expert: - 5/3/2008


Question
how does the DNA nucleotide sequence determine the amino acid sequence in a protein?

Answer
The DNA makes mRNA according to the base pairing rule
A-U
T-A
C-G
G-c
   Three sequence combinations code for specific proteins.  For example AAU may code for Valine and AGC for proline.  The mRNA strand is on the ribosomes acts as a template and amino acids are carried to the mRNA by tRNA.  There fore the amino acid sequence depends upon the nucleotide sequence

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Walter Hintz

Expertise

Science teacher for over 50 years. MSc. in biology. I can answer questions in general biology, zoology, botany, anatomy and physiology and biochemistry.

Experience

I have a MSc in biology and have been a science teacher for over 50 years. At present I am a faculty member at a college and a science consultant at seven catholic schools.

Publications
The Ohio journal of Science
Momentum-The Journal of the Catholic Education Association

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