Type II topoisomerases change the linking number in 

A. Steps of two

B. Steps of three

C. Make transient double-strand breaks 

D. Make transient single-strand break

Mark the option with correct combination

TLS Online TPP Program

#Question id: 2636

#Unit 2. Cellular Organization

Which of the following events occur when E. coli is starved for tryptophan?

I.  The ribosome translates leader peptide completely

II. Transcription reads through attenuator into trp EDCBA

III. Tryptophanyl tRNA is not formed

IV. A stem loop structure involving regions 3 and 4 is formed at attenuator site

TLS Online TPP Program

#Question id: 4900

#Unit 8. Inheritance Biology

The chlorophyll-deficient types occur in a particular plant species due to a mutation in the DNA of the chloroplast itself, Female cytoplasm chlorophyll-deficient organisms crossed with male normal chlorophyll will produce progeny

TLS Online TPP Program

#Question id: 24442

#Unit 13. Methods in Biology

Match the following Column I with Column II 

Column I	Column II
A. PR segment	i. Plateau portion of the ventricular action potential
B. PR interval	ii. Conduction through atrioventricular node
C. ST segment	iii. The time from initial depolarization of the atria to initial depolarization of the ventricles
D. ST interval	iv. An isoelectric portion of the QT interval

TLS Online TPP Program

#Question id: 34096

#Unit 3. Fundamental Processes

A eukaryotic genome is divided into multiple replicons, and the origin in each replicon is activated once and only once in a single division cycle. It is due to

TLS Online TPP Program

#Question id: 26456

#Unit 3. Fundamental Processes

Consensus sequence are