Practice Questions

TLS Online TPP Program

#Question id: 1065

Resistance of some animals to certain viral diseases is based on

#Unit 4. Cell Communication and Cell Signaling

lack of spikes for attachment.
phagocytosis of the virus by the host cell.
the presence of the viral envelope.
lack of specific receptors on the host cell.

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TLS Online TPP Program

#Question id: 31300

#Unit 5. Developmental Biology

During chick development, as cells converge to form the primitive streak, a depression called as:

TLS Online TPP Program

#Question id: 31301

#Unit 5. Developmental Biology

Which of the following acts as the equivalent of the amphibian Nieuwkoop center in chick?

TLS Online TPP Program

#Question id: 31302

#Unit 5. Developmental Biology

The mechanism of Mediolateral intercalation in the formation of the primitive streak is mediated by the activation of the:

TLS Online TPP Program

#Question id: 31303

#Unit 5. Developmental Biology

In birds, primitive groove is homologous to the:

TLS Online TPP Program

#Question id: 31304

#Unit 5. Developmental Biology

Hensen’s node is functionally equivalent to the which of the following structure of amphibian?

TLS Online TPP Program

#Question id: 31305

#Unit 7. System Physiology – Animal

What is the membrane potential (threshold level) at which the S-A node discharges?