What are the origin and direction of transfer

Assignment Help Biology

Reference no: EM13146698

Salmonella enterica is closely related to Escherichia coli. It can be infected with the F plasmid, which can integrate into the chromosome to produce Hfr strains.These can be mated with F- E. coli to study the order and time of entry of genetic markers. The data shown here pertain to times of entry of four genetic markers in crosses of E. coli Hfr x E.coli F- and S. enterica Hfr x E.coli F- .

ile met pro arg
E. coli Hfr x E. coli F- 28 20 6 22
S. enterica Hfr x E. coli F- 4 22 47 18
(numbers refer to time in minutes)

(a) How do the genetic maps of E. coli and S. enterica compare with respect to these genes?
(b) What are the origin and direction of transfer in each Hfr?
(c) How fast does an S. enterica Hfr transfer chromosomal DNA relative to an E. coli Hfr?

Reference no: EM13146698

Questions Cloud

Conversion of the preferred stock to the common stock : The market value of the common stock at the date of the conversion was $30 per share. What total amount should be credited to additional paid-in capital from common stock as a result of the conversion of the preferred stock into common stock?

What is the resulting temperature : What is the resulting temperature when 35 g of water at 75C is mixed with 15 g of water at 15C? (The specific heat of water is 4.184 J/g x C.)

Types of markets in microeconomic analysis : What are the four major types of markets in microeconomic analysis and what are the key characteristics that distinguish these markets?

Janice applied for a job at king industries : Janice applied for a job at King Industries. She found out from her friend that she was turned down for a job which she was fully qualified, because of her gender.

What are the origin and direction of transfer : Salmonella enterica is closely related to Escherichia coli. It can be infected with the F plasmid, which can integrate into the chromosome to produce Hfr strains.

What if you borrowed to invest a total : What would happen to the expected value and standard deviation of the investment if you borrowed an additional $1,000 and invested a total of $2,000? What if you borrowed $2,000 to invest a total of $3,000?

What is the role of hippocampal size in spatial memory : Discuss in detail the role of NMDA receptors and AMPA receptors in the induction of LTP. What is the role of protein synthesis? What is a "synaptic dialog?" Who is "talking" to whom and what are they "saying?"

Determine the ph of the solution : A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Determine the pH of the solution after the addition of 200.0 mL of KOH. The Kb of NH3 is 1.8 × 10-5.

How much is in this account after years : Every month you put $100 into a savings account which pays 5% interest compounded monthly. At the end of each year you receive a $500 bonus which you place directly into your “house fund”. How much is in this account after 5 years?

User Account

All Pages