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TLS Online TPP Program

#Question id: 7310

Which statement best describes the mechanism for circadian rhythm?

#Unit 5. Developmental Biology
  1. There is an alternation between enhanced and inhibited expression of clock genes.
  2. Clock genes inhibit gene expression of positive elements.
  3. Clock genes inhibit expression of negative elements.
  4. The time-keeping mechanism depends only on the breakdown of negative elements.
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TLS Online TPP Program

#Question id: 19363

#Unit 13. Methods in Biology

What is the size limit for in vitro packaging of an unmodified lambda vector?
TLS Online TPP Program

#Question id: 7281

#Unit 5. Developmental Biology

Evolutionary conservation of homeotic gene organization and transcriptional expression in fruit flies and mice is seen in the similarity between the Hom-C cluster on Drosophila chromosome 3 and the four Hox gene clusters in the mouse genome.

 

According to this figure, Which of the following statement is correct?
TLS Online TPP Program

#Question id: 531

#Unit 1. Molecules and their Interaction Relevant to Biology

Glucose labeled with 14C in C-1 and C-6 gives rise in glycolysis to pyruvate labeled in:
TLS Online TPP Program

#Question id: 5468

#Unit 8. Inheritance Biology

Plant height is control by polygenetic trait. Plant having height 6 cm are allowed to cross with plant having height 2 cm , all F1 progeny having height uniform 4 cm were allowed selfing to produced F2 progeny in which 5 out of 320 with height of 6 cm. What will be phenotype ratio in F2 generation?
TLS Online TPP Program

#Question id: 7284

#Unit 5. Developmental Biology

Choose the correct match.

                       Genes

 

         Axis polarity

 

a.Maternal deficiency of gurken

 

 

i.Posteriorization of follicle cells

 

b.Maternal deficiency of torpedo

 

ii.Ventralization of embryo

 

        c. Maternal deficiency of toll

iii.Dorsalization of embryo

 

iv.No anterior posterior axis