With pulsed-field gel electrophoresis, which can separate DNA molecules up to 107 bp in length. The results of pulsed-field gel electrophoresis of the DNA from the yeast Saccharomyces cerevisiae are shown in Figure. How many chromosomes does S. cerevisiae have?

TLS Online TPP Program

#Question id: 28916

#Unit 4. Cell Communication and Cell Signaling

Which of the following hedgehog (Hh) proteins promotes spermatogenesis?

TLS Online TPP Program

#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?