23. The electron transport chain is part of A. glycolysis C. oxidative phosphory

Question

23. The electron transport chain is part of A. glycolysis C. oxidative phosphorylation. B. the citric acid cycle. D. fermentation. E. pyruvate oxidation. 24- The individual polypeptide chains in a multi-subunit protein each have their own primary, secondary, and tertiary structure. A. true B. false 25- The fully folded structure of a complex functional protein composed of two polypeptide chain is referred to as the structure. A. primary B. secondary C. tertiary D. quaternary 26-The unfolding of a protein by heat or chemical treatment is referred to as: B. uncoupling. A. disaggregation. D. hydrolysis. C. denaturation. E. depolymerization. 27. What are examples of potential energy? B. Wind, sunlight, heat wind, water evaporation, gasoline. C. candy bar water behind a dam, cloud B. D. Sunlight cloud, cooked potato DNA sequence, 5'CAGCGA TTA3 what would be the mRNA sequences. A. 3' GUC CCU AAUS' B. 3' CUG GGA UUAS C. 5' CUG GGA UUA3' D. 5' GUC CCU AAU3 tide has been transferred to the tRNA in the A site moves down one codon so that the polypeptide-bearing tRNA is in the P site of the ribosome. A. tRNA B.mRNA C Ribosome D.Spliceosome 30- You are investigating eukaryotic mRNAs from normal cells intrig them there is just one mutant defect in these cells, which of the belowpossihil tine an abnormal eukaryotic cellline that makes all of ts mRNAs much longer than the you examine the proteins in these abnormal cells and note that many of s. Intrigued horter than the normal proteins from nonmutant cells. Assuming are either much longer or much shorter than the normal A. A stop codon is mutated. B. RNA polymerase does not recognize the terminator se C. The release factor is defective. D. The spliceosome is nonfunctional. E. The enzyme that adds the poly-A tail is defective. quence.

Explanation / Answer

23)C

24)B

25)D

26)c

27)c

28)d

29)a

30)d a spliceosome is not funtional so it is not cutting the introns so mRNA length is long.and in other cases it is removing introns and exons and joining first and last exon so protein is short.

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