Two pure line of corn have mean cob length of 15 cm and 5 cm, respectively. 6 polygenes involved in this trait exhibit additive gene action. Crossing these two lines is expected to produce a progeny population with mean cob length of

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: 21811

#Unit 12. Applied Biology

Which one of the following is a type of transducer?

 1. Potentiometer

 2. Thermistor

3.  Gyroscope

Which of the following are incorrect?

TLS Online TPP Program

#Question id: 3963

#Unit 3. Fundamental Processes

To stimulate transcription, enhancer sequences:

TLS Online TPP Program

#Question id: 34092

#Unit 3. Fundamental Processes

A. SeqA binds to hemimethylated DNA and is required for delaying rereplication.

B. As the origins are hemimethylated they bind to the cell membrane and may be unavailable to methylases.

C. The dat locus contains DnaA-binding sites that titrate availability of DnaA protein.

D. Hda protein is recruited to the replication origin to convert DnaA-ATP to DnaA-ADP.

Choose true and false

TLS Online TPP Program

#Question id: 21258

#Unit 12. Applied Biology

Some classes of mutants were obtained from the parental strain as the source of genetic material for transduction:

I) A strain that are resistance to thialysine

II) A strain in which both the threonine-regulated AK and HD were resistant to feedback inhibition by threonine

III) A strain is selected for ß-hydroxynorvaline Sensitive, in which HDI was sensitive to both inhibition and repression and the threonine-regulated AK was constitutively synthesized