TLS Online TPP Program

#Question id: 28919


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?

#Unit 4. Cell Communication and Cell Signaling
  1. a and c
  2. a and d
  3. b and c
  4. b and d
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TLS Online TPP Program

#Question id: 5467

#Unit 8. Inheritance Biology

Two varieties of maize averaging 25 and 125 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 75 inches in height. Of the 500 F2 plants, the Shortest 2 is 25 inches and the tallest 2 are 125 inches. What will be number phenotype observe in F2 progeny and number of polygene contribute for that character respectively?

TLS Online TPP Program

#Question id: 1349

#Unit 4. Cell Communication and Cell Signaling

The addition of a peptide with an RGD sequence would probably    ?     the binding of cultured cells to a fibronectin-coated dish.

TLS Online TPP Program

#Question id: 12695

#Unit 8. Inheritance Biology

A panel of cell lines was created by human—mouse somatic-cell hybridization. Each cell line was examined for the presence of human chromosomes and for the production of three enzymes. The following results were obtained: 

On the basis of these results, give the chromosomal locations of the genes encoding enzyme 1, enzyme 2, and enzyme 3. 

TLS Online TPP Program

#Question id: 23087

#Unit 12. Applied Biology

tumours give rise to continuous cell lines, but there are some other examples of continuous cell lines, which were derived from normal tissues and are themselves non-tumorigenic such as,

TLS Online TPP Program

#Question id: 11527

#Unit 6. System Physiology – Plant

Coleoptiles are very sensitive to light, if illuminated on one side with a short pulse of dim blue light, it will