TLS Online TPP Program

#Question id: 29106


For the proper segregation of the chromosome at anaphase-I chiasma formation take place. At which stage of the cell cycle crossing over takes place?

#Unit 8. Inheritance Biology
  1. Prophase
  2. Late prophase
  3. Prometaphase
  4. Metaphase
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TLS Online TPP Program

#Question id: 10712

#Unit 10. Ecological Principles

Researcher study the diversity of 4 communities, following is relative abundance of each species at different community? ( ln .5 = -0.69  , ln .25= -1.38, ln .12= -2.12)

Which of the following is decreasing order of their Shannon weaver diversity index of community?

TLS Online TPP Program

#Question id: 10713

#Unit 10. Ecological Principles

Following is sampling data of five species in five quadrate is represent. Which of the following is a correct order of decreasing abundance?

TLS Online TPP Program

#Question id: 10714

#Unit 10. Ecological Principles

What is value of Gini-simpson indices of following community? 


TLS Online TPP Program

#Question id: 10715

#Unit 10. Ecological Principles

Following table shows the presence (+) or absence (-) of five species in three communities (A, B, C):


Based on the above, which of the following is the correct order of diversity strength communities?

TLS Online TPP Program

#Question id: 10716

#Unit 10. Ecological Principles

The stability of a food web in a community is quantified using certain parameters which are defined below. Which of the following is an CORRECT representation?

A. Community with more complex is more stable

B. Community with more number of alternate is more stable

C. Stability of community is inversely proportional to Connectance 

D. Community with higher value of dominax index is more stable

TLS Online TPP Program

#Question id: 10717

#Unit 10. Ecological Principles

Following represents four different regions, each with four different sites on different-sized mountains. Which of the following statement is correct? 


a) In region ‘a’ gamma diversity (γ) is one, and alpha diversity (α) diversity is also 1

b) In region ‘b’ gamma diversity (γ) is 4, and alpha diversity (α) diversity is 1

c) In region ‘c’ gamma diversity (γ) is six, and beta diversity (β) diversity is 2

d) The gamma diversity (γ) are same in region ‘c’ and‘d’.