You have discovered a new species of archaea from a hot spring in Yellowstone National Park.  After growing a pure culture of this organism, what strategy might you employ to sequence its genome?

You identify a new bacterial species in the koi pond between the Curry Student Center and Robinson Hall and decide to name it NE koili. You analyze the genome sequence of NE koili and find that the NE koili genome contains cas genes and pieces of various bacteriophage genomes separated by unique repeats. You roommate is baffled by this observation. Having covered this topic in BIOL2299, explain to your roommate why there are pieces of phage DNA in a bacterial genome. In your answer, include the role of cas nuclease.

You purified the genome of the coliphage X174. After analysis, you find that its composition is 25 percent A, 33 percent T, 24 percent G, and 18 percent C. Based on this finding, which of the following prediction would you make for the coliphage $X174? The genome of coliphage X174 is double-stranded DNA. The genome of coliphage X174 is single-stranded DNA. The genome of coliphage X174 is single-stranded RNA. The genome of coliphage $X174 is double-stranded RNA. Previous Page Next Page Page 9 of 30

You have found a gene of interest in an animal in the rain forest which produces a unique protein that will blocks reproduction of the pathogen that now plagues the world. You wish to mass produce this protein using bacteria. Answer the following questions regarding the scenario above.  Describe how you would remove the gene of interest out of the isolated animal cell.  What type of vector, (delivery system), would be best used to get the gene into the bacteria? How would you insert the gene of interest into the vector? How would get the vector into the bacteria? Why would the bacteria express this gene even if it normally does not have use for this protein?

Choose the one answer that fits best. Which of the following statements regarding bacteria is NOT correct?   a. During conjugation, two bacteria exchange genetic information directly via pili   b. Bacterial populations have a higher mutation rate because their DNA Polymerases do not have proofreading capability   c. Bacterial growth by binary fission is exponential and each division usually takes only a couple of hour or less   d. Plasmids carry just a few genes and are replicated independently from the bacterial chromosome   e. Cocci that are arranged in clusters/bunches are called staphylococci

Genomic islands A) O contain genes of similar function B) O typically represent the flexible gene pool of a bacterial population C) O may possess genes related to pathogenicity or symbiosis D) O are typically acquired by horizontal gene transfer E) O All the above are correet

24. The earliest RNA probably functioned in A) catalysis. B) self-replication. C) neither catalysis nor self-replication D) both catalysis and self-replication. 25. LUCA refers to A) the ancestral cell before the divergence into Eukaryotes and Prokaryotes B) the ancestral cell before the divergence into Archaea and Prokaryotes C) the ancestral cell before the divergence into Archaea and Bacteria D) the ancestral cell before the divergence into Eukaryotes and Bacteria 26. Endosymbiosis between bacterial and archaea A) Allowed the evolution of eukaryotic cells with organelles B) Allowed for the accumulation of ozone in the early atmosphere C) Occurred after multicellularity evolved D) Occurred after 3.8 but before 2.5 bya 27. In the sub-surface hypothesis the origination of cellular life on earth occurred in stages. Which of the following represents conditions likely in the first (oldest) stage: A) Energetic reactions coupled to molecular replication in mineral compartments B) Nutrients…

TEIIF Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a a) comes to the complex with the polymerase b b) loosens non-specific interactions with the DNA c) both a and b d) none of the above

In bacteria, acquisition of an F prime factor could result in the formation of a partial diploid. Theoretically, what other processes could result in creating a partial diploid? A) O transformation B) O conjugation C) O specialized transduction D) O generalized transduction D) O all of the above

a bacteriophage has been isolated from the growth chambers that has evolved the capability to the methylate its own DNA when it is replicated inside the host bacterium. why is this a problem?