Question

Namer A) alternating sugar and nitrogen bases liked by peptide bonds B) complimentary bases held together by hydrogen bonds 6) The backbone of a niacleic acid strand consists of: alternating sugar and phosphate groups linked by phosphate ester bonds D) alternating nitrogen bases and phosphate groups linked by amide bonds Q 7) 刁what amino acids are involved in the following tripeptide? NH-CH-C-NH-CH-- CH NH OH D) His-Lys-Phe A) Tyr-His-Lys C) Lys-His-Tyr B) Lys-His-Phe 8) Which list contains only neutral polar amino acids? B) Asn, Gin, Cys, Tyr D) Lys, Glu, Thr, Tyr A) Cys, Asn, His, Arg C) Ser, Cys, Phe, Glu 9) 9) What are the three letter and one letter designation for aspartate? C) Asn, N D) Asp, N A) Asn, P B) Asp, D 10) 10) The type of RNA that contains the anticodon for an amino acid is called: C) mRNA A) tRNA D) rRNA B) vRNA 11) How many amino acids are essential in humans? C) 18 A) 5 B) 10 D) 20 12) A correct set of complimentary base pairs in DNA are: 12) A) GA B) AU C) TC D) AT 32-614190 (Version A) 13) 13) Which of the following proteins has a distinctive Y-shape? D) Antibodies A) Hemoglobin B) Collagen C) Integral protein 14) 14) Which of the following nitrogenous bases is found only in RNA? C) Thymine D) Adenine B) Cytosine A) Uracil 15) 15) The sequence GCCCTGA has the A at the: B) 5-end D) depends on size of DNA A) 3-end C) can be either the 5' or 3-end 16) 16) In order to make a protein a copy of the DNA must be done by which type of RNA? B) Viral RNA D) Transfer RNA A) Messenger RNA C) Ribosomal RNA 17) What is the amino acid sequence coded from the following mRNA sequence? BVal-Ser-Thr-His D) Ala-Ser-Thr-His GUU-AGC-ACA-CAU A) Val-Ser-Thr-Gln C) Ala-Ser-Thr-Gln 18) 18) What type of interaction is involved in the tertiary structure of a protein? B) Salt bridges D) All of the above A) Hydrogen bonding C) Disulfide bonds 19) 19) The structure of guanine is: B) A) 0 0 NNH2 0 D) C) NH2 NH2 0

Answer 1

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