Recognition of which molecules by receptor-like molecules present in resistant plants initiates several biochemical reactions?

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#Question id: 19813

#Unit 12. Applied Biology

Antisense RNA approach is one of the strategies for producing virus resistant transgenic plants. How this provides protection?

TLS Online TPP Program

#Question id: 14948

#Unit 6. System Physiology – Plant

Cellulose microfibrils have an ordered structure and are synthesized at the plasma membrane, given characteristics of microfibrils;

a) Each microfibril is composed of an estimated 18 parallel chains of (1,4)-linked β-D-glucose chains tightly bonded to each other to form a crystalline microfibril

b) Microfibrils have hydrophilic surfaces, populated by polar –OH groups extending from the plane of the sugar rings

c) Microfibrils have hydrophobic surfaces, populated by nonpolar C–H groups populating the sides of stacked glucose chains

 d) microfibril important for enzymatic attack by microbial cellulases, which dock onto the hydrophobic surface and remove one glucan chain at a time

Which of the following from given characteristics of microfibrils is incorrect?

TLS Online TPP Program

#Question id: 1144

#Unit 4. Cell Communication and Cell Signaling

Which of the following is NOT a common intracellular second messenger?

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#Question id: 4604

#Unit 11. Evolution and Behavior

Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, which develop from similar embryonic tissues. These structural similarities are an example of ________.

TLS Online TPP Program

#Question id: 14838

#Unit 5. Developmental Biology

Sequence of amphibian lens induction postulated by experiments on embryos of the frog Xenopus laevis ; EXCEPT