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1. Transfer of DNA from a donor to a recipient cell by a bacteriophage.Transfer of DNA from a donor to a recipient as naked DNA in solution.3. Feedback inhibition differs from repression because feedback inhibitiona. islessprecise.b. is slower acting.c. stops the action of preexisting enzymes. d. stops the synthesis of new enzymes.e. all of the above4. Bacteria can acquire antibiotic resistance by all of the following excepta. mutation.b. insertion of transposons. c. conjugation.d. snRNPs.e. transformation.5. Suppose you inoculate three flasks of minimal salts broth withE. coli. Flask A contains glucose. Flask B contains glucoseand lactose. Flask C contains lactose. After a few hours of incubation, you test the flasks for the presence of ?-galactosidase. Which flask(s) do you predict will have this enzyme?a.A d.AandB b. B e. BandC c. C6. Plasmids differ from transposons in that plasmids a. becomeinsertedintochromosomes.b. are self-replicated outside the chromosome.c. move from chromosome to chromosome.d. carry genes for antibiotic resistance.e. none of the aboveUse the following choices to answer questions 7 and 8.catabolite repression b. DNA polymerasec. inductiond. repression e. translationpage1image41008 page1image41168 page1image41328 page1image414887. Mechanism by which the presence of glucose inhibits the lac operon.8. The mechanism by which lactose controls the lac operon.9. Two offspring cells are most likely to inherit which one of thefollowing from the parent cell?a. a change in a nucleotide in mRNA b. a change in a nucleotide in tRNA c. a change in a nucleotide in rRNA d. a change in a nucleotide in DNA e. a change in a protein10. Which of the following is not a method of horizontal gene transfer? a. binaryfissionb. conjugationc. integration of a transposond. transductione. transformationRestriction enzymes were first discovered with the observation thata. DNA is restricted to the nucleus.b. phage DNA is destroyed in a host cell.c. foreign DNA is kept out of a cell.d. foreign DNA is restricted to the cytoplasm. e. all of the aboveThe DNA probe, 3? -GGCTTA, will hybridize with which of the following?a. 5?-CCGUUA b. 5?-CCGAAT c. 5? -GGCTTA d. 3?-CCGAAT e. 3? -GGCAAUThe following enzymes are used to make cDNA. What is the second enzyme used to make cDNA?a. reverse transcriptase c. RNA polymeraseb. ribozyme d. DNA polymeraseIf you put a gene in a virus, the next step in genetic modification would bea. insertion of a plasmid.b. transformation.c. transduction.You have a small gene that you want replicated by PCR. You add radioactively labeled nucleotides to the PCR thermal cycler. After three replication cycles, what percentage of the DNA single strands are radioactively labeled?a. 0% d. 87.5%b. 12.5% e. 100%c. 50%Match the following choices to the statements in questions 7-10antisense, southern blot, vector, clone, library
Pieces of human DNA stored in yeast cells.A population of cells carrying a desired plasmid.Self-replicating DNA for transmitting a gene from one organismto another.A gene that hybridizes with mRNA.
3. which of the following is the fourth basic step to genetically modify a cell?a. transformation b. ligation c. plasmid clevage d. restriction-enzyme digestion of gene e. isolation of gene
Determine tendon of quadriceps femoris and patellar ligament? Mention 3 muscles that form pes anserinus tendon on superior and medial aspect of the tibia.
Modify population equation Nt = Noe^rt such that Nt includes both males and females. Be sure to list any assumptions needed by your modification and explain why this new model works.
Create a map of these 3 genes, including the correct order, and map distance between each gene. Describe your reasoning/show your work for both
Think about an enveloped virus fusing with the plasma membrane. If fusion can not be triggered by low pH because the plasma membrane is neutral,
how was Mendel able to isolate a particular trait for study? how did he control for outside factors that might confound his results?
Fertilization involves much more than a mere restoration of the diploid chromosome number. What does the process of fertilization entail on the part of both the egg and sperm? What are the effects of fertilization.
The time-of-entry mapping method was used to determine the first five markers transferred from each Hfr during a synchronized conjugation experiment. The markers and their transfer order form each Hfr are shown below.
Mrs. Smith and Mrs. Jones had baby girls same day in same hospital. Mrs. Smith named her baby Shirley and Mrs. Jones named her baby Jane.
If there were 200 F2 offspring approximately how many would you expect to be both red eyed and shy. If an F1 Nessie were to be mated to a blue eyed and outgoing Nester what would be expected phenotypic ratio of the off spring use a punnett square.
Discuss why can not hot water work with biological soap powders that are synthesized with the enzymes necessary to break down certain stains?
Practitioners of homeopathic medicine believe that toxic substances, appropriately diluted, can have healing effects, usually having the opposite effect of symptoms of the original toxic compound.
Describe why biodiversity is important to ecosystem health, even in an agricultural setting where most often farmers are paid for a single, pure product like wheat or corn.
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