TLS Online TPP Program

#Question id: 27971


What is the electron transfer series between complex I to Q

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. NADH - Fe-S - FMN - Q
  2. NADH - FMN - Fe-S - Q
  3. FMN - NADH - Fe-S - Q
  4. Fe-S - FMN - NADH - Q
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TLS Online TPP Program

#Question id: 33907

#Unit 2. Cellular Organization

A circular DNA molecule with 580,070 bp. Calculate the molecular weight and contour length (when relaxed) of this molecule. What is Lko for the Mycoplasma chromosome? If σ=-  0.06, what is Lk?

TLS Online TPP Program

#Question id: 33908

#Unit 2. Cellular Organization

How is the linking number altered if one DNA strand is broken

TLS Online TPP Program

#Question id: 33909

#Unit 2. Cellular Organization

What is the Lk of a 5,000 bp circular duplex DNA molecule with a nick in one strand?

TLS Online TPP Program

#Question id: 33910

#Unit 2. Cellular Organization

What is the Lk of a 5,000 bp circular duplex DNA molecule after eight enzymatic turnovers by a single molecule of DNA gyrase in the presence of ATP?

TLS Online TPP Program

#Question id: 33911

#Unit 2. Cellular Organization

What is the Lk of a 5,000 bp circular duplex DNA molecule after eight enzymatic turnovers by a single molecule of DNA gyrase in the presence of ATP followed by 8 enzymatic turnovers by a single molecule of bacterial type I topoisomerase

TLS Online TPP Program

#Question id: 33912

#Unit 2. Cellular Organization

A. When a DNA molecule is negatively supercoiled, it is underwound. 
B. Any structural change involving DNA strand separation becomes more likely in negatively supercoiled DNA. 
C. Negative supercoiling makes establishment of left-handed Z-DNA in a segment of DNA 
D. The formation of plectonemic or solenoidal supercoils is favored as a means of negative supercoiling.

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