S-shaped or sigmoid growth curve have

I. lag phase

II. log phase

III. stationary phase

IV. diminishing growth phase

Select the correct option

In tissue culture experiments, leaf mesophyll cells are placed in a culture medium to form callus. This phenomenon is known as:

A mutation affects the function of the Hox genes in a developing Drosophila embryo. Which of the following is the MOST likely consequence?

A scientist is culturing leaf mesophyll cells. The cells lose their specialized features and form an unorganized mass. This is NOT an example of:

Which one is the example of dedifferentiation?

Heterophylly can be observed in

I. cotton

II. coriander

III. larkspur

Select the right option

The process of programmed cell death during development is called:

Unlike the formation of vascular tissues from procambium, the development of interfascicular cambium from parenchyma cells represents:

The development of interfascicular cambium from mature parenchyma cells between vascular bundles exemplifies:

Phellem is formed by phellogen through

Richmond-Lang effect is concerned with