Mmsc 490 Study guides, Class notes & Summaries

Which energy-producing process is thought to have come first during cellular evolution? correct answers Glycolysis The initial importance of a membrane enclosing self-replicating RNA molecules and associated proteins was that it correct answers maintained these molecules as a unit capable of reproduction and evolution. Mitochondria and chloroplasts resemble bacteria in that they correct answers have their own DNA, have their own ribosomes, reproduce by simple division into two. Which of...

Aminoacyl-tRNA syntheses are enzymes that.... correct answers attach amino acids to specific transfer RNAs Which of the following statements about introns is true? correct answers Some types of organisms generally do not have introns The primary function of factor EF-G is to... correct answers move the peptide-tRNA from the A site of the ribosome In bacteria, mRNAs are.... correct answers transcribed and translated simultaneously The combined sizes of prokaryotic and eukaryotic ribos...

MMSC 490 Final (all chapters) Exam Questions and Answers

MMSC 490- Compliation of Exam 3 Quizzes

MMSC 490 Exam 3 Questions with Correct Answers Aminoacyl tRNA synthetases are enzymes that attach the terminal CCA sequence to transfer RNAs. attach amino acids to specific transfer RNAs. connect amino acids while they are held in place on ribosomes by transfer RNAs. synthesize transfer RNAs. - Answer-attach amino acids to specific transfer RNAs. E. coli contains about .................... different tRNAs that code for .................... different amino acids. 62; 40 40; 20 50...

MMSC 490 2024 Exam Questions with Correct Answers The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of .......... in eukaryotic cells. RNA Molecules Ribosomes Oxidative phosphorylation Nucleus - Answer-Nucleus Cytoplasmic organelles are... Present in prokaryotic cells an absent in eukaryotic cells Absent in prokaryotic cells and present in eukaryotic cells Absent in both prokaryotes and eukaryotes Present in both prokaryotic and eukaryotic ...

MMSC 490 Final Exam Questions with Correct Answers Humans possess about .............. different cell types. 100 200 500 1,000 - Answer-200 In adult organisms, cell death must be balanced by cell growth. differentiation. renewal. migration. - Answer-renewal The distinct series of changes that characterizes programmed cell death is called necrosis. apoptosis. sepsis. execution. - Answer-apoptosis Cells that die as the result of acute injury undergo lysis. sepsis. apoptosi...

MMSC 490 Final Exam Practice Questions and Answers

MMSC 490 Exam 2 Questions with Correct Answers Which eukaryotic DNA polymerase replicates the lagging strand in the 3ʹ to 5ʹ direction? a. α b. γ c. δ d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. - Answer-d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. DNA polymerases can synthesize DNA: a. de novo, by catalyzing the polymerization of free dNTPs. b. by adding dNTPs to complementary dNTPs on a single-s...

MMSC 490 Practice Quizzes Modules 1-4