TLS Online TPP Program

#Question id: 11303


Which of the following processes includes all the others?

#Unit 2. Cellular Organization
  1. osmosis
  2. diffusion of a solute across a membrane
  3. passive transport
  4. transport of an ion down its electrochemical gradient
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TLS Online TPP Program

#Question id: 4566

#Unit 11. Evolution and Behavior

Which of these naturalists synthesized a concept of natural selection independently of Darwin?

TLS Online TPP Program

#Question id: 5266

#Unit 8. Inheritance Biology

In conjugation the donor cell is recognized by the presence of

TLS Online TPP Program

#Question id: 10604

#Unit 10. Ecological Principles

Which of the following statement are incorrect? 

TLS Online TPP Program

#Question id: 11626

#Unit 8. Inheritance Biology

A locus determines the type of pigment produced in the squash, with yellow (Y_) dominant over green (yy). This locus is expressed only in ww plants, which lack the dominant inhibitory allele W. We can assign the genotype ww Y_ to plants that produce yellow squash and the genotype ww yy to plants that produce green squash. The genotypes and their associated phenotypes are:


What will be the correct prediction about these pathway?

TLS Online TPP Program

#Question id: 10374

#Unit 6. System Physiology – Plant

The stages in the formation of the symbiotic relationship between the nitrogen-fixing bacteria and their host, Arrange the given statements of symbiotic association in a stepwise manner;

 a) Migration of the bacteria toward the roots of the host plant by a chemotactic response mediated by chemical attractants

b) NodD with the flavonoids bind with the Promoter region of  highly conserved the nod box

c) These attractants activate the rhizobial NodD protein,

d) The chemical attractants especially (iso)flavonoids and betaines, secreted by the roots

e) Binding of the activated NodD to the nod box induces transcription of the other nod genes

 Which of the following from the above statements are correct arrangement of symbiosis?