Answer: Three nucleotides encode an amino acid. Proteins are built from a basic set of 20 amino acids, but there are only four bases.
Explanation:
Answer:
By breathing when oxygen enters the body it goes to alveoli and gas exchange occurs then carbon dioxide comes out of the the body
Flu<span>, </span>hepatitis A<span>, </span>hepatitis B<span>, </span>chickenpox<span>, </span>herpes zoster<span> (</span>shingles<span>), </span><span>cancer</span>
He discovered a new type of medicine that could treat infections.
He discovered the 1st antibiotic (penicillin).