Practice Questions

TLS Online TPP Program

#Question id: 4000

Which statement is false about the utilization of lactose as a carbon source by E. coli?

#Unit 3. Fundamental Processes

In the presence of both glucose and lactose, the enzymes necessary for lactose catabolism are produced only in limited amounts.
Lactose is the inducer for the enzymes responsible for its own catabolism.
In the absence of lactose, the repressor binds to a single site upstream of the lac genes.
The catabolic enzymes are encoded in a three-gene operon controlled by a single promoter.

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TLS Online TPP Program

#Question id: 10265

#Unit 8. Inheritance Biology

The alternate form of a gene is

TLS Online TPP Program

#Question id: 7456

#General Aptitude

How many times the hands of a clock will be in vertically opposite Directions from 10 AM to 10 PM.

TLS Online TPP Program

#Question id: 26856

#Unit 10. Ecological Principles

In ecosystem the energy flow is always

TLS Online TPP Program

#Question id: 5026

#Unit 11. Evolution and Behavior

Whatever its ultimate cause(s), the Cambrian explosion is a prime example of

TLS Online TPP Program

#Question id: 2386

#Unit 2. Cellular Organization

Given some plant chemical composition, which one of these are soluble in water?