Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. in 30% ethanol, a 440 bp closed circular a-form dn

In 30% ethanol, a 440 bp closed circular A-form DNA is in a relaxed form (no...

90.2K

Verified Solution

Question

Chemistry

In 30% ethanol, a 440 bp closed circular A-form DNA is in arelaxed form (no supercoil). What are the Lk, Tw and Wr values?(Please elaborate)

By transferring the above DNA from 30% ethanol solution to watersolution, the structure of this DNA molecule converts from A-formto B-form helix (10 bp/turn) without breaking its backbone. Whatwould the Lk, Tw and Wr be? (Please elaborate)

Answer & Explanation Solved by verified expert
4.5 Ratings (682 Votes)
DNA supercoiling can be described numerically by changes in the linking numberLk The linking number is the most descriptive property of supercoiled DNA Lko the number of turns in the relaxed B type DNA plasmidmolecule is determined by dividing the total base pairs of the molecule by the relaxed bpturn which depending on reference is 104105 Lkobp104 Lk is merely the number of crosses a single strand    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

How fatty acids move in two dimensial fluid of cell? What allow and what limit their...

Biology
Q

Note:Subject:EC110/EEC1202 Section 02 Early Childhood Education Curriculum and Instruction but I choose Psychology to be easy. Choose...

Psychology
Q

If the radiations of wavelength 3100 and 6200 are incident on a substance of work...

Physics
Q

Two wires are in unison If the tension in one of the wires is increased...

Physics
Q

You are painting a room that is 14 feet long, 12 feet wide, and 8...

Basic Math
Q

Find the number of subsets of the set 23 A xlx is a letter in...

Calculus
Q

10 9 L00 OA 8 1 OB 8 1 C 8 1 OD 1 8...

Algebra
Q

Find an expression to represent the area of the rectangle below 2 3r 28 16...

Algebra
Q

Sketch the graph of each linear inequality 1 y x 3 A B D 2...

Algebra
Q

Analyze three (3) internal control weaknesses of each major subsystem (Purchases System, Payroll System, Fixed...

Accounting
Q

You work as an accountant for a retailing business. How would you respond to the...

Accounting
Q

An analyst is considering investing in Kraft Heinz; a stock that generated free cash-flow (FCF)...

Finance