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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...

Eggs and sperm are tetraploid. haploid. euploid. diploid correct answers haploid Animal cells and most cells of higher plants are haploid. tetraploid. euploid. diploid. correct answers diploid Our fundamental knowledge about mutation, genetic linkage, and the relationships between genes and chromosomes was acquired largely from experiments on the plant Maize. pea plant. fruit fly Drosophila. bacterium Pneumococcus. correct answers fruit fly Drosophila. George Beadle and Edw...

cytoplasmic organelles are: a. absent in prokaryotic cells and present in eukaryotic cells. b. present in both prokaryotic and eukaryotic cells. c. present in prokaryotic cells and absent in eukaryotic cells. d. absent in both prokaryotic and eukaryotic cells. correct answers a. absent in prokaryotic cells and present in eukaryotic cells E. coli is a useful model system for molecular biology studies because: a. it has a small genome. b. it reproduces rapidly. c. mutants can easily be i...

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 correct answers 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 correct answers C In a typical cycling mammalian cell, _______ of the cell cycle is spent in interphase. a. 99% b. 95% c. 75% d. 50% correct answe...

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 correct answers c. G2 In a typical cycling mammalian cell, _______ of the cell cycle is spent in interphase. a. 99% b. 95% c. 75% d. 50% correct answers b. 95% The number of cells in the different phases of a population can be determined most easily by using a(n) _______ to measure the amount of DNA per ce...