Many bacterial responses are controlled by two component regulatory systems. What will happen at the high concentration of glutamine and at the low concentration of glutamine?

a) At high concentrations glutamine binds to a sensor domain of NtrB conformational change in the protein that inhibits its histidine kinase activity

b) NtrC phosphorylation takes place causes a conformational change in NtrC that unmasks the NtrC DNA-binding domain so that it can bind to the glnA enhancers

c) At the same time, the regulatory domain of NtrC blocks its DNA-binding domain from binding the glnA enhancers

d) At low concentrations of glutamine dissociates from the sensor domain in the NtrB protein, leading to activation of a histidine kinase transmitter domain

Which of the following given combination is correct?

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#Question id: 5440

#Unit 8. Inheritance Biology

Human height is control by 5 pair of polygene . A pure line dominant human has height of 100 cm while pure line of recessive human has 20 cm. What will be average height of human with genotype aabbCCDDEe?

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#Question id: 23185

#Unit 13. Methods in Biology

An example of the use of a FRET biosensor for protein kinase a, which gives

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#Question id: 5824

#Unit 8. Inheritance Biology

___ is a second mutation at a different location in the genome that compensates for the effects of an original, first mutation.

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#Question id: 5431

#Unit 8. Inheritance Biology

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 3 plant out of  8 having height  4 cm . what are number of polygene involve in that trait ?

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#Question id: 5120

#Unit 5. Developmental Biology

Which one of the following statements are regarding to epiboly is correct?