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TLS Online TPP Program

#Question id: 4724

Which of the following are true about crossing over ?

#Section 2: Evolution

  1. crossing over lead to homologous chromosome become identical

  2. crossing over lead to non-sister chromosome become identical

  3. crossing over lead to sister chromosome become identical

  4. crossing over lead to sister chromosome become non-identical

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TLS Online TPP Program

#Question id: 11255

#Section 4: Behavioural Ecology

Antiherbivore defenses in Umbelliferous plants and the insects feeding on these plants has shown that:
TLS Online TPP Program

#Question id: 4957

#Section 2: Evolution

How many half-lives should have elapsed if 6.25% of the parent isotope remains in a fossil at the time of analysis?
TLS Online TPP Program

#Question id: 12678

#General Aptitude

The length of the diagonal of a square is ‘a’ cm. Which of the following represents the area of the square (in sq. cm.) ?
TLS Online TPP Program

#Question id: 3375

#Section 2: Evolution


Evolutionary force

Caused

A

Mutation

i

Increase genetic variation within population 

B

Genetic Drift

ii

Decrease genetic variation within population 

C

Migration 

iii

Decrease genetic variation between  population 

iv

Increase genetic variation between population 

Which of the following combination is correct?
TLS Online TPP Program

#Question id: 11656

#Section 1: Ecology

What is the assumption of Clements in colonizing successional  species?