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MMSC 490 quiz 4 chapter 5 (SOLVED!)
The simplest eukaryotic genome is found in correct answers Saccharomyces cerevisiae Potential protein-coding regions of genomic DNA containing long stretches of nucleotide sequences that can encode polypeptides and contain no stop codons are called correct answers open-reading frames Analysis of the first bacterial genome to be sequenced, H. influenzae revealed _____ rRNA genes, _______ different tRNA genes, and ______ potential protein-coding genes. correct answers 6, 54, 1743 The firs...
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MMSC 490 practice quiz 9 chapter 16 (With 100% complete answers)
Signaling by neurotransmitters is an example of _______ signaling. correct answers paracrine Peptide hormones and growth factors act on target cells by binding to cell surface and _______ receptors. correct answers soluble extracellular The effect of acetylcholine on the heart muscle cells is to correct answers stimulate one contraction Aspirin inhibits ______ synthesis. correct answers prostaglandin Diacylglycerol and calcium activate _______. correct answers protein kinase C Cal...
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MMSC 490 practice quiz 7 chapter 8 (with error-free answers)
The pioneering studies of gene regulation in E. coli were conducted in the 1950s by... correct answers Jacob and Monod E. Coli preferentially utilizes glucose for energy. However, in the absence of glucose, genes that can metabolize alternative sugars are activated. Low glucose... correct answers elevates cAMP through adenylyl cyclase that binds to and activates CAP to effectively increase transcription rates of genes that metabolize alternative sugars Which of the following statements abo...
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MMSC 490 practice quiz 6 chapter 7 (Test questions with correct answers)
Which of the following does not contribute to the large variety of antigen-binding specificities found among the immunoglobulins? correct answers retrotransposons In addition to synthesizing DNA, DNA polymerase I has a second catalytic activity; it can correct answers remove RNA primers How many replication origins are there in the human genome? correct answers 30,000 DNA replication is correct answers semiconservative Which of the following statements is true of all known DNA polyme...
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MMSC 490 Final (Already Graded A+)
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...
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MMSC 490 Exam 3 (Set 3) Possible questions with 100% accurate answers)
The eukaryotic cell cycle is composed of four phases in the following order: S; G1; G2; M G1; S; G2; M G1; G2; S; M G1; M; G2; S correct answers G1; S; G2; M 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). G2 G1 M S correct answers G2 In a typical cycling mammalian cell, .............................. of the cell cycle is spent in interphase. 50% ...
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MMSC 490 Exam 3 (Questions with 100% accurate answers; A+ GUARANTEED)
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. correct answers d. They lack nuclei and membrane-bounded organelles. Two examples of membrane lipids that are present in small am...
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MMSC 490 exam 2 (With 100% correct answers)
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...
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MMSC 490 Exam 1 (Already Passed!)
cell wall correct answers -organelle of bacteria and plants -rigid layer composed of carbohydrates and proteins -porous and easily penetrated plasma membrane correct answers -organelle of bacteria, plant and animal cells -bilayer of phospholipids and associated proteins -provides separation from inside of cell and external environment nucleoid correct answers -organelle of bacteria -contains 1 circular molecule of DNA -not surrounded by membrane ribosomes correct answers -organell...
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MMSC 490 Exam 1 PQ Questions with errorless answers
The light microscope was used to observe the cellular structure of cork by ____, who named the chambers "cells". correct answers Hooke Which fish is proving to be a useful model organism for the study of vertebrate development? correct answers Zebrafish Arabidopsis thaliana is a model organism for studying the molecular biology of correct answers Plants The original cell was thought to have arisen from the enclosure of self-replicating ____ by a phospholipid membrane correct answers R...
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MMSC 490 Final Exam Questions with Correct Answers
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. apoptosis. ...
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MMSC 490 2024 Exam Questions with Correct Answers
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 cell...
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MMSC 490 Exam Question and Answers All Correct
MMSC 490 Exam Question and Answers All Correct Which energy producing process is thought to have come first during cellular evolution - Answer-glycolysis The initial importance of a membrane enclosing self-replicating RNA molecules and associated proteins was that it - Answer-maintained these molecules as a unit capable of reproduction and evolution Mitochondria and chloroplasts resemble bacteria in that they - Answer-have their own DNA have their own ribosomes reproduce by a simple ...
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MMSC 490 Exam Questions and Correct Answers
MMSC 490 Exam Questions and Correct Answers The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of .......... in eukaryotic cells. - Answer-a nucleus Cytoplasmic organelles are - Answer-absent in prokaryotic cells and present in eukaryotic cells The eukaryotic nucleus contains .......... DNA molecule(s). - Answer-multiple linear Stanley Miller applied electric sparks to a reducing atmosphere of methane, ammonia, water, and hydrogen, and the resultin...
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MMSC 490 Final Test Questions with Correct Answers
MMSC 490 Final Test Questions with Correct Answers Which energy-producing process is thought to have come first during cellular evolution? - Answer-Glycolysis The initial importance of a membrane enclosing self-replicating RNA molecules and associated proteins was that it - Answer-maintained these molecules as a unit capable of reproduction and evolution. Mitochondria and chloroplasts resemble bacteria in that they - Answer-have their own DNA, have their own ribosomes, reproduce by si...
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MMSC 490 Exam 3 Questions with Correct Answers
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; 2...
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MMSC 490 Exam 2 Questions with Correct 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. - Answerd. 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-strand...
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MMSC 490 Exam 2 Questions and Answers All Correct
MMSC 490 Exam 2 Questions and Answers All Correct The genomes of salamanders contain ten times more DNA than the genomes of humans because salamanders - Answer-have more noncoding DNA than humans have. A gene can be defined as a segment of DNA that codes for - Answer-functional product. Introns in mRNA-coding genes are the transcribed sequences - Answer-between protein-coding sequences. In the nucleus, introns are removed from transcripts by - Answer-splicing introns can encode - Ans...
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MMSC 490 Exam 1|144 Questions And Answers
The light microscope was used to observe the cellular structure of cork by ____, who named the chambers "cells". - ️️Hooke Which fish is proving to be a useful model organism for the study of vertebrate development? - ️️Zebrafish Arabidopsis thaliana is a model organism for studying the molecular biology of - ️️Plants The original cell was thought to have arisen from the enclosure of self-replicating ____ by a phospholipid membrane - ️️RNA The feature that most clea...
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