Practice Questions

TLS Online TPP Program

#Question id: 319

London dispersion forces are attractive forces that arise due to

#Unit 1. Molecules and their Interaction Relevant to Biology

infinitesimal dipoles generated by the constant random motion of electrons.
permanent dipoles of molecules containing covalent bonds between atoms of very different electronegativities.
the hydrophobic effect.
ion pairing between oppositely charged functional groups.

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TLS Online TPP Program

#Question id: 29562

#Unit 6. System Physiology – Plant

There are some statements are given regarding the Plant pathogens groups

a. derive energy from living cells

b. derive energy from killed cells

c. kill host plant tissue rapidly

d. live saprotrophically on the dead remains

Which of the following is true regarding Necrotrophs

TLS Online TPP Program

#Question id: 7279

#Unit 5. Developmental Biology

X chromosome number alone is the primary sex determinant in normal drosophila because:

TLS Online TPP Program

#Question id: 1665

#Unit 4. Cell Communication and Cell Signaling

The Fab region of an Ig is responsible for:

TLS Online TPP Program

#Question id: 26856

#Unit 10. Ecological Principles

In ecosystem the energy flow is always

TLS Online TPP Program

#Question id: 1709

#Unit 4. Cell Communication and Cell Signaling

What are the specialized cell type involved in the entry of lymphocytes into lymph nodes called?