Which one of the following factor of Holoenzyme assists the RNA polymerase in separating the DNA strands at the transcription start site?

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#Question id: 19286

#Unit 9. Diversity of Life Forms

scale of ovulate (ovule-bearing) pinecone 

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#Question id: 2971

#Unit 2. Cellular Organization

Which one of the following is the most appropriate match?

Events	Protein	Phases
A. Cohesins are loaded onto chromosomes	I. Mei-S332/Shugoshin	a. G1
B. Cohesins can dissociate from the DNA	II. Polo kinase and Aurora B kinase	b. G2
C. Prevents cohesin phosphorylation, and hence dissociation	III. Scc2-Scc4	c. S
D. Phosphorylation of cohesins	IV. Pds5-Wapl	d. M

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#Question id: 3370

#Unit 11. Evolution and Behavior

One thousand independent populations of Drosophila are established with 25 individuals in each population, of which, one individual is of Aa genotype and the other nine are of AA genotype. If random genetic drift is the only mechanism acting on these populations, then, after a large number of generations, the expected number of populations fixed for the "a" allele is

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#Question id: 2643

#Unit 2. Cellular Organization

 If in an experiment you mutate the two trp codons in the attenuator to ala codon what will be the impact on repression?

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#Question id: 1745

#Unit 4. Cell Communication and Cell Signaling

On injection into mice, bovine serum albumin conjugated with dinitrophenol (DNP) behaves as a: