Plant height of wild Solanum nigrum is controlled by polygene. A pure line plant with 60 cm height was cross to pure line plant having 20 cm height .All F1 plant having uniform height 40 cm. F1 plant was allowed to self-fertilization to produced 4/64 proportional of F2 plant having height 20 cm . What is number of polygene governing plant height?

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#Question id: 12213

#Unit 7. System Physiology – Animal

The gastric phase of gastric secretion accounts for about 60% of the acid response to a meal. Which of the following can virtually eliminate the secretion of acid during the gastric phase?

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#Question id: 4139

#Unit 3. Fundamental Processes

Which one of the following statements about the elongation phase of protein synthesis is true?

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#Question id: 26481

#Unit 2. Cellular Organization

Which of the following are the characteristics of prokaryotic operator O1

a. Made up of 21-bp sequence 

b. It has twofold/dyad symmetry 

c. Recognized by two subunits of Lac repressor

d. On each O1 four unit of Lac repressor binds

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#Question id: 20027

#Unit 13. Methods in Biology

The technique which are based on the precipitation reaction in the fluids and in the gels are,

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#Question id: 2285

#Unit 2. Cellular Organization

Assuming all other factors to be the same, electron microscopes have greater resolving power than light microscopes because.