Many birds readily feed upon periodic cicadas when they emerge as adults. This interaction between birds and cicadas represents an example of

TLS Online TPP Program

#Question id: 7202

#Unit 5. Developmental Biology

Identify the correct match of the modes of regeneration (column I) with their definition (column II)

Column I	Column II
A. Stem cell-mediated regeneration	i. Through the re-patterning of existing tissues. There is often little new growth but rather cell death and a change in cell type (i.e., transdifferentiation into a different cell fate). This results in a rescaling of the whole organism as well as regeneration of the missing part.
B. Epimorphosis	ii. The differentiated cells divide but maintain their differentiated functions. The new cells do not come from stem cells, nor do they come from the dedifferentiation of adult cells.
C. Morphallaxis	iii. Adult structures can undergo dedifferentiation to form a relatively undifferentiated mass of cells (a blastema) that then redifferentiates during morphogenesis of the new structure.
D. Compensatory regeneration	iv. Stem cells allow an organism to regrow certain organs or tissues that have been lost.

 

TLS Online TPP Program

#Question id: 5926

#General Aptitude

Today is Monday . After 61 days , it will be

TLS Online TPP Program

#Question id: 12728

#Unit 13. Methods in Biology

Name the type of RNA which folds up to give a cloverleaf secondary structure.

TLS Online TPP Program

#Question id: 11487

#Unit 1. Molecules and their Interaction Relevant to Biology

Glycosidic bonds have Ф, Ψ and w angles due to

TLS Online TPP Program

#Question id: 26951

#Unit 10. Ecological Principles

The net reproductive rate (R0) is 1.5 for a given population. If Nt , the population of females at generation t, is 300, then what will be the population of females after four generations (Nt+4)?