Proteins are made up of A. Parts of DNA B. Aminoacid units bonded by glycosildic

Question

Proteins are made up of A. Parts of DNA B. Aminoacid units bonded by glycosildic bonds B. Aminoacid units bonded by peptide bonds D) Nucleotides bonded by phosphodiester bonds Enzyme inhibition is A. The lost of the gene codifying for the protein B. The reversible or irreversible loss of enzyme activity C. A very low concentration of the enzyme D. The enzyme in the wrong cell Enzymes are A. Very specialized proteins forming structural components B. Very specialized proteins that catalyze biochemical reactions C. Very specialized proteins that store energy D. Very specialized proteins that exist only in the stomach The three components of nucleotides in DNA are A Group phosphate, ribose, and a nitrogen containing base B. Group phosphate, deoxyribose, and acetyl group C. Group nitrate, deoxyribose and a nitrogen containing base D. Group phosphate, deoxyribose, and a nitrogen containing base One of the following is NOT in DNA A. Guanine B. Adenine C. Uracil D. Thymine In most of the cases in eukaryotes the first aminoacid in the A. Alanine B. Isoleucine

Explanation / Answer

40.C.Aminoacid units bonded by peptide bonds.

41.B.the reversible or irreversible loss of enzyme activity

42.B.very specialized proteins that catalyse biochemical reactions.

43.D.Group phosphate,deoxyribose,nitrogen containing base

44.C.Uracil

The four nitrogen bases found in DNA are {adenine, guanine}[purines], {cytosine and thymin}[pyrimidines] so uracil is not present in dna.

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