1. What are essential amino acids? amino acids that can be made only by Odn the
ID: 134541 • Letter: 1
Question
1. What are essential amino acids? amino acids that can be made only by Odn the body an a. our body b. amino acids that cannot be in ynthesized in the body and must be part of the diet special kinds of proteins that are m amino acids that are not found in nature amino acids that cannot be broken down by the body c. d. made by mutated genes e. 2. What is a peptide bond? a. a chemical link formed between nucleotides b. a chemical link between protein and histones c. a bond between water molecules d. a bond between DNA and water a chemical link formed between amino acids, linking them together e. What is an anticodon? a. b. 3. duplicate sequences of nucleotides a triplet of nucleotides in mRNA that encodes the information for a specific amino acid in a protein a group of three nucleotides in a tRNA molecule that pairs with a codon in a mRNA molecule c. d. a chemical link formed between amino acids e. the chemical subunits of amino acids 4. What happens in sickle cell anemia? a. h Affected individuals have a wide range of symptoms. Inherited as an autosomal recessive trait.Explanation / Answer
1. Essential aminoacids are those that cannot be synthesized by the organism and hence needs to be supplied in its diet. In humans there are 9 aminoacids that are essential: phenylalanine, valine, threonine, tryptophan, methionine, leucine, isoleucine, lysine, and histidine. So the answer is b.
2. A peptide bond is a covalent bond linking two consecutive aminoacids in a polypeptide or protein chain so the answer is e.
3. Is a sequence of three nucleotidic bases located in the tARN, complementary to the corresponding codon located in the mRNA so the answer is c.
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