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Who solves these questions. I am stuck in some questions so I-(Answered)

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Who solves these questions. I am stuck in some questions so I asked. ????

5) The bacteriophage T4 has a linear chromosome and a circular genetic map. How is this possible?

1. it?s not

2. the chromosome is terminally redundant

3. the chromosome is circularly permuted
4. the chromocome turns into a prophage, thereby becoming circular
a) both 2 and 3 are correct
b) 2 c) 1 d) 3 e) 4

9) How is transformation mediated in Bacillus subtilis?
a) by the stage of the growth cycle
b) by the calcium concentration of the media
c) by a prophage
d) when the bacteria stop dividing, transformation is highest.
e) by the age of the culture

10) The frequency with which two genetic markers are cotransformed:
a) never occurs
b) can be analyzed for nucleotide sequence
c) can be used to estimate genetic distances
d) would demonstrate how competent each cell is
e) can be used to determine the starting genotype of the bacteria

12) Which of the following matings would most likely produce an F+ cell after conjugation?
a) F- donor and F+ recipient
b) Hfr donow and F- recipient
c) F+ donor and Hfr recipient
d) F+ donor and F- recipient
e) Hfr donor and F+ recipient
13) What is generalized transduction?
a) competent bacteria take up DNA from the media
b) a process by which bacteria touch to exchange genetic information, there is a one way flow of information
c) phages very rarely package any piece of bacterial DNA into the phage head
d) a process by which bacteria touch to exchange genetic information, there is a bidirectional flow of genetic information
e) prophages excise and package the genes next to the excision sites into the phage head
14) What is specialized transduction?
a) prophages excise and package the genes next to the excision sites into the phage head
b) a process by which bacteria touch to exchange genetic information, there is a one way flow of information
c) a process by which bacteria touch to exchange genetic information, there is a bidirectional flow of genetic information
d) competent bacteria take up DNA from the media
e) phages rarely package any piece of bacterial DNA into the phage head

18) What is formed by anomalous excision of the F Factor in Hfr?
a) F? sexduction b) the pUC19 plasmid
c) lambda phage d) an F? factor
e) another F factor
19) A partial diploid in bacteria is formed when:
a) an F? plasmid carries bacterial genes
b) the Hfr is transferred into an F- cell
c) never, bacteria are not diploid
d) the F factor integrates to form an Hfr
e) lambda phage brings in the gal and bio genes

 

Paper#9210729 | Written in 27-Jul-2016

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