If a given lymphocyte divides to form two daughter cells, both daughters bear antigen receptors with antigen specificities identical to each other and to the parental cell from which they arose, and so will any descendants they produce. The resulting population of lymphocytes, all arising from the same founding lymphocyte, is a clone. Which interleukin is responsible for clone production?

TLS Online TPP Program

#Question id: 19226

#Unit 12. Applied Biology

A systematic examination of the conditions that are used in Agrobacterium-mediated plant transformation revealed that a hormone that significantly decreased the transfer of genes to plant genomes. It is

TLS Online TPP Program

#Question id: 19223

#Unit 12. Applied Biology

Based on the DNA sequence of a commonly used binary vector some example are

1. pBIN19

2. pCB301

3. pBR322

Which of the following above statements are correct?

TLS Online TPP Program

#Question id: 19216

#Unit 12. Applied Biology

Agrobacterium respond to which plant phenolic compounds which are excreted by susceptible wounded plants.

1. Toluene

2. Acetosyringone 

3. Hydroxyacetosyringon

Which of the option have incorrect statement?

TLS Online TPP Program

#Question id: 17085

#Unit 12. Applied Biology

Spontaneous cell fusion occurs at a very low rate. Enhanced fusion can be done by 

1. Sendai virus 

2. Polyethylene glycol

3. Ficol

4. Phenol red

Which of the above mentioned can be used for fusion experiments?

TLS Online TPP Program

#Question id: 17076

#Unit 12. Applied Biology

The various advantages of serum-free media could be

1. Improved reproducibility of results from different laboratories

2. Easier downstream processing of products from cultured cells

3. Biassays are free from interference due to serum proteins

4. They permit selective culture of diffrentiated cell types from the heterogeneous cultures

Which of the statements are true?

TLS Online TPP Program

#Question id: 16492

#Unit 12. Applied Biology

Upstream elements on the other hand regulates the activity of gene action are

A. Enhancer sequences

B. Silencer sequences

C. Termination sequences

D. Signal sequences

Mark the option with correct combination