The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 16 gm to 24 gm. Which of the following natural selection operate on this species?

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#Question id: 28917

#Unit 4. Cell Communication and Cell Signaling

Find out the correct match of Vertebrates hedgehog gene with their characteristics;

TLS Online TPP Program

#Question id: 28918

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is correct about Sonic hedgehog?

TLS Online TPP Program

#Question id: 28919

#Unit 4. Cell Communication and Cell Signaling

Given some statements about Hedgehog processing and secretion;

a) autoproteolytic activity that cleaves off the C-terminus to reveal a signal sequence that marks the protein for secretion 

b) autoproteolytic activity that cleaves off the N-terminus to reveal a signal sequence that marks the protein for secretion 

c) Secretion requires the addition of cholesterol and palmitic acid

d) Secretion requires the  modification of Hh by Glycosylation

Which of the following is correct prediction about processing and secretion of Hh?

TLS Online TPP Program

#Question id: 28920

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a correct prediction about processing and secretion of Hedgehog protein ?

a) the freed N-terminal is not involved in signaling and is often degraded

b) the freed C-terminal is not involved in signaling and is often degraded

c) the N-terminal becomes the active Hedgehog protein intended for secretion

d) the C-terminal becomes the active Hedgehog protein intended for secretion

TLS Online TPP Program

#Question id: 28921

#Unit 4. Cell Communication and Cell Signaling

Which of the following modification is required for the Secretion of Hh protein?

TLS Online TPP Program

#Question id: 28922

#Unit 4. Cell Communication and Cell Signaling

Hedgehog binding receptor is called___