TLS Online TPP Program

#Question id: 5642


One of the earliest events in arabidopsis development is formation of the _____ axis, in response to a gradient of _____.

#Unit 5. Developmental Biology
  1. Apical-Basal, Auxin

  2. Dorsal-ventral, miRNA

  3. Apical-basal, pin-1 and pin-7

  4. Adaxial-abaxial, cytokinins

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TLS Online TPP Program

#Question id: 3425

#Unit 11. Evolution and Behavior

Many evolutionary forces are operating in population. In study, within population increase genetic variation due to -----A-----while decrease genetic variation due to ------B-----. Between populations increase genetic variation due to -----C-----while decrease genetic variation due to ------D-----.

TLS Online TPP Program

#Question id: 3426

#Unit 11. Evolution and Behavior

Fitness of three different genotypes is given in population I and II, under natural selection which of the following statement are correct?

TLS Online TPP Program

#Question id: 3427

#Unit 11. Evolution and Behavior

Natural selection can alter the frequency of distribution allele and heritable trait in different following way

A- Accumulation of those mutation that increase fitness of population in changing environment

B- Check accumulation of mutation that lower the fitness of species in unchanging environment

c- occur when population is subjected to divergent selection

TLS Online TPP Program

#Question id: 3428

#Unit 11. Evolution and Behavior

In a sample from an African population, the frequency of blood group allele IA, IB and IO were 0.30, 0.20 and 0.50 respectively. What is expected frequency of A and B blood group respectively when population size 1000?

TLS Online TPP Program

#Question id: 3429

#Unit 11. Evolution and Behavior

Which of the following is a behavioral pattern that results from a proximate cause?

TLS Online TPP Program

#Question id: 3430

#Unit 11. Evolution and Behavior

The proximate causes of behavior are interactions with the environment, but behavior is ultimately shaped by