SCIENCE
BIOLOGICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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4
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2
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5
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3
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Detailed explanation-1: -The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen.
Detailed explanation-2: -All amino acids have the same basic structure. Each molecule has a central carbon atom linked together with a basic amino group, a carboxylic acid group, a hydrogen atom and an R-group, or side-chain group. The R-group is what sets the amino acids apart. The R-group determines each amino acid’s chemical nature.
Detailed explanation-3: -The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
Detailed explanation-4: -Proline (Pro) amino acid is the amino acid which is specified by 4 mRNA codons; CCU, CCC, CCA, CCG. While methionine is specified by just one codon, the amino acids Lysine and Tyrosine are specified by two codons each.
Detailed explanation-5: -Hence, phosphorus is not found in amino acids.