Studies from the sea urchin developmental biology, Eric Davidson’s group envisions a network involving cis regulatory elements (such as promoters and enhancers) in a logic circuit connected to one another by transcription factors. Following statements are given regarding to this network.

A. The network receives its first inputs from transcription factors in the egg cytoplasm.

B. The network self-assembles from the ability of the maternal transcription factors to recognize cis-regulatory elements of particular genes that encode other transcription factors.

C. The new set of transcription factors activate autocrine signaling pathways that activate specific transcription factors in neighboring cells.

D. This network of interconnections among genes that specify cell types known as a gene regulatory network (GRN).

Which of the following statements are correct?

TLS Online TPP Program

#Question id: 29083

#Unit 10. Ecological Principles

Relative absorption per ppm of increase is;

I- CO2

II- Methane 

III- Nitrous oxide

IV- Chlorofluorocarbon

Arrange in decreasing order

TLS Online TPP Program

#Question id: 29084

#Unit 10. Ecological Principles

Which of the following gases has the major contribution to global warming?

TLS Online TPP Program

#Question id: 29085

#Unit 10. Ecological Principles

While studying the diversity of 4 communities, 5 species and 50 individuals were recorded from each community. The number of individuals under each species was listed as mentioned in the following table;

Which of the following is decreasing order of evenness of community?

TLS Online TPP Program

#Question id: 29086

#Unit 10. Ecological Principles

Ecologists have often partitioned the overall species diversity of a region into different components given in figure;

A-Overall differences 

B- overall richness of the region

C- Local site richness

Select the correct match

TLS Online TPP Program

#Question id: 29087

#Unit 10. Ecological Principles

Following table shows the number of individuals of different species in two communities, X and Y. Use Sorensen index determine the degree of similarity between X and Y community?

TLS Online TPP Program

#Question id: 29088

#Unit 10. Ecological Principles

Following table shows the number of individuals of different species in two communities, X and Y. Use Jaccard index determine the degree of similarity between X and Y community?