Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 28767
TLS Online TPP Program

#Question id: 2629

Case of constitutive mutants,

#Unit 2. Cellular Organization

  1. Lac Oc, required a higher concentration of repressor to achieve full binding than did the wild-type operator.

  2. Lac I-, that causes the repressor to bind IPTG more loosely than normal.

  3. Only A

  4. A & B both

More Questions
TLS Online TPP Program

#Question id: 4802

#Unit 8. Inheritance Biology

Why is tetrad analysis useful for studying genetics?
TLS Online TPP Program

#Question id: 17197

#Unit 7. System Physiology – Animal

If a person does not find ways to manage stress levels at this stage, they are at risk of developing stress-related health conditions. This stage is known as:
TLS Online TPP Program

#Question id: 15604

#Unit 12. Applied Biology

The bacteria which cause septicaemia are fast becoming resistant to the antibiotics used for controlling them. Which one of the following explanations fits best?
TLS Online TPP Program

#Question id: 8887

#Unit 9. Diversity of Life Forms

Generally, members of which flatworm class(es) are nonparasitic?
TLS Online TPP Program

#Question id: 5356

#Unit 8. Inheritance Biology

In the following pedigree, individuals with shaded circle or shaded square show presence of a recessive autosomal trait. The calculated risk of occurrence of this trait for III-I is