Practice Questions

TLS Online TPP Program

#Question id: 2794

All the following statements about heterochromatin except:

#Environmental Science

It is a dark-staining area of a chromosome.
It is usually transcriptionally active.
It is often simple sequences of DNA.
It is a region of condensed chromatin.

More Questions

TLS Online TPP Program

#Question id: 37850

#Plant Biotechnology

Which of the following processes describes the change of mature, differentiated plant cells into meristematic cells in culture?

TLS Online TPP Program

#Question id: 37851

#Plant Biotechnology

An unorganized mass of cells formed when plant tissues are cultured on agar-gelled nutrient medium is called:

TLS Online TPP Program

#Question id: 37852

#Plant Biotechnology

Why do callus cultures need to be subcultured every 3–5 weeks?

TLS Online TPP Program

#Question id: 37853

#Plant Biotechnology

Which of the following cell types can undergo dedifferentiation in suitable culture conditions?

TLS Online TPP Program

#Question id: 37854

#Plant Biotechnology

The primary requirement for a plant tissue to form a callus in vitro is:

TLS Online TPP Program

#Question id: 37855

#Plant Biotechnology

The process in which cells in callus culture regain the ability to divide is called: