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MMSC 490 Exam Questions with Verified & Updated solutions The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of .......... in eukaryotic cells. RNA Molecules Ribosomes Oxidative phosphorylation Nucleus - Answer️️ -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 euk...

MMSC490 Exam 2 Questions with Complete 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-...

MMSC490 Final Exam Questions with 100% Correct Answers | Verified & Updated The eukaryotic cell cycle is composed of four phases in the following order: a. G1; S; G2; M b. G1; G2; S; M c. G1; M; G2; S d. S; G1; G2; M - Answer ️️ -A The length of time it takes for the cells labeled during DNA synthesis to begin to enter mitosis is a good estimate of the length of the _______ phase(s). a. G1 b. S c. G2 d. M - Answer ️️ -C In a typical cycling mammalian cell, _______ of the cel...

MMSC 490 Exam 3 Questions & Answers What is the primary reason that mammalian red blood cells are used in the study of the plasma membrane? a. There are a lot of them and they are easily obtained. b. They contain larger plasma membranes than any other cell type. c. They are of particular interest because they are made up of a lipid monolayer. d. They lack nuclei and membrane-bounded organelles. - Answer ️️ -d. They lack nuclei and membrane-bounded organelles. Two examples of membrane...

MMSC 490 Exam 1 with 100% Correct Answers cell wall - Answer ️️ --organelle of bacteria and plants -rigid layer composed of carbohydrates and proteins -porous and easily penetrated plasma membrane - Answer ️️ --organelle of bacteria, plant and animal cells -bilayer of phospholipids and associated proteins -provides separation from inside of cell and external environment nucleoid - Answer ️️ --organelle of bacteria -contains 1 circular molecule of DNA -not surrounded by membr...

MMSC490 Practice Exam 1 with 100% correct Answers Cytoplasmic organelles are - Answer️️ -absent in prokaryotic cells and present in eukaryotic cells. E. coli is a useful model system for molecular biology studies because - Answer️️ -All of the above Arabidopsis thaliana is a model organism for studying the molecular biology of - Answer️️ - Plants The diffraction limited resolving power of a standard light microscope is approximately - Answer️️ -0.2 micrometers A common ...

MMSC490 Exam 1 Questions and Answers 2024 The simplicity and clarity of Caenorhabditis elegans allowed researchers to - Answer- Identify the genes in differentiation of each cell type The diffraction limited resolving power of a standard light microscope is approximately - Answer-0.2 Om Chloroplasts are thought to have originated from endosymbiosis of ___ by large host cell. - Answer-Photosynthetic eubacteria such as cyanobacteria The eukaryotic nucleus contains ___ DNA molecule (s). - An...

MMSC490 Questions: FINAL chp.18, Questions and answers, rated A+ The Bcl-2 family of proteins is divided into three functional groups that contain and share as many as four Bcl-2 homology domains (BH domains). Which of the following is common to all members of the Bcl-2 family? a. BH1 b. BH2 c. BH3 d. BH4 - BH3 which of the following stem cells have the capacity to give rise to all the differentiated cell types of adult organisms? - embryonic stem cells Murine embryonic stem cells...

According to the central dogma of molecular biology, transcription of genetic information occurs via... A) DNA-dependent RNA synthesis. B) RNA-dependent protein synthesis. C) RNA-dependent DNA synthesis. D) DNA-dependent DNA synthesis. correct answers A) DNA-dependent RNA synthesis In prokaryotes, σ factors are necessary for... A) low-affinity binding upstream for promoters. B) specific binding to certain promoters. C) All of the above. D) elongation of the RNA strand to its end. cor...

Even though the complete genome is significantly smaller than humans, the flowering plant Arabidopsis thaliana has about _______ genes, about the same number as humans have. A) 26,000 B) 6,000 C) 100,000 D) 4,000 correct answers A) 26,000 Which of the following statements about introns is true? A) They are part of a gene, but they are absent from the corresponding mRNA. B) Prokaryotes do not have introns in their genes. C) They make up only a small fraction of the DNA of a mammalian ge...