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TLS Online TPP Program

#Question id: 1104

Which of the following statements is true of signal molecules?

#Unit 4. Cell Communication and Cell Signaling

  1. When signal molecules first bind to receptor tyrosine kinases, the receptors phosphorylate a number of nearby molecules.

  2. In response to some G protein-mediated signals, a special type of lipid molecule associated with the plasma membrane is cleaved to form IP3 and calcium.

  3. In most cases, signal molecules interact with the cell at the plasma membrane, enter the cell, and eventually enter the nucleus.

  4. Protein kinase A activation is one possible result of signal molecules binding to G protein coupled receptors.

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TLS Online TPP Program

#Question id: 10749

#Unit 10. Ecological Principles

Which of the following observation of above experiment set is correct?


A) First set of experiment, N1 and N2 species are coexist

B) Second set of experiment, N1 and N2 species are coexist

C) Second set of experiment, N1 will be win

D) First set of experiment, population growth of each species is limited more by intraspecific competition than by interspecific competition
TLS Online TPP Program

#Question id: 10750

#Unit 10. Ecological Principles

Which of the following correct this model?


TLS Online TPP Program

#Question id: 10751

#Unit 10. Ecological Principles

Possible interaction between populations in following manner ,which of the following best represent for negative ineteracion ?
TLS Online TPP Program

#Question id: 10752

#Unit 10. Ecological Principles

Which of the following is an example of Batesian mimicry?

A) a butterfly that resembles a leaf

B) a nonvenomous larva of a moth that moves like a venomous snake

C) a fawn with fur coloring that camouflages it in the forest environment

D) a snapping turtle that uses its tongue to mimic a worm, thus attracting fish
TLS Online TPP Program

#Question id: 10753

#Unit 10. Ecological Principles

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

#Question id: 10754

#Unit 10. Ecological Principles

Following is different type of interaction was shown in figure. (+: Benefit , - Harm , 0= Neither benefit nor harm) What is interaction between column A & B in each schematic?