As the two strands of the double helix are separated, the positive supercoiling interferes with the further unwinding of DNA. Which of the following enzyme makes a break in a strand of DNA to release the supercoiling and facilitate the replication to occur?

TLS Online TPP Program

#Question id: 15674

#XL - S Microbiology

During which phase of the bacterial growth curve does the total number of viable cells decline?

TLS Online TPP Program

#Question id: 15675

#XL - S Microbiology

Shake tubes are used to determine the

TLS Online TPP Program

#Question id: 15676

#XL - S Microbiology

The dairy industry also sometimes uses ultrahigh-temperature (UHT) sterilization. Milk and milk products are heated at

TLS Online TPP Program

#Question id: 15677

#XL - S Microbiology

Ultraviolet (UV) radiation around 260 nm is quite lethal but does not penetrate

1. glass 

2. dirt films 

3. Water

March the correct answer

TLS Online TPP Program

#Question id: 15678

#XL - S Microbiology

Alcohols are among the most widely used disinfectants and antiseptics. They act by 

TLS Online TPP Program

#Question id: 15679

#XL - S Microbiology

Dry heat sterilization the items to be sterilized are placed in an oven at