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Which of the following is an extended medical application to understanding how viruses attack?
Using viruses to assist in DNA Fingerprinting
Using viruses to insert healthy DNA into cells whose genetic material has been damaged by injury or disease.
Using viruses for gene therapy technique
Two of the above are applications
All of the above are applications
What does bacterial growth on a plate containing a particular trait (such as antibiotic resistance) after a bacterial conjugation experiment indicate? A. The bacterial colonies have acquired the trait from the F- strain (recipient). B. The bacterial colonies have resisted the trait and not undergone conjugation. C. The bacterial colonies have undergone mutation and developed the trait on their own. D. The bacterial colonies growing on the plate have likely undergone conjugation and acquired the desired trait from the F+ strain (donor).
What must occur for bacterial conjugation to take place? A. The cells must transfer RNA. B. One of the cells must be E. coli. C. The cells must come into contact with each other. D. Each cell must contain a plasmid.
True or False: Can two different species of bacteria conduct bacterial conjugation? Responses True, as long as they have identical chromosomal DNA. True, as long as they have identical chromosomal DNA. True, as long as there is a plasmid to be transferred between them any bacteria can do it. True, as long as there is a plasmid to be transferred between them any bacteria can do it. False, they have different genus. False, they have different genus. False, the pilus would not form a hollow bridge since they are different species
Which of the following statements about conjugation is true? A Transferring DNA between cells in conjugation requires a virus carrier. B The donor and recipient cell must be in direct contact (touching) to transfer DNA. C Conjugation can only occur between bacteria of the same species. D Conjugation can occur with or without a conjugative plasmid.
Which is true about bacterial conjugation? A) It can transfer plasmid DNA that has been integrated into the main chromosome. B) It involves the reciprocal exchange of DNA between cells. C) It is never affected by plasmids. D) It requires meiosis before sex pili form. E) It involves a conjugation tube.
Choose the event below that does not occur during bacterial conjugation. Multiple Choice The recipient cell becomes a donor cell after conjugation. Enzymes cleave one strand of the DNA at the origin of transfer. Transfer of the DNA strands occurs in both directions. Shortening of the pilus occurs during conjugation. Direct contact between is made between donor and recipient cells.