RNA from RNA polymerase 19) The arrow symbol depicted In Figure 2 is consistent

Question

RNA from RNA polymerase 19) The arrow symbol depicted In Figure 2 is consistent with the action of a protein that a. modifies nucleosomes and causes chromatin condensation at its target gene b. modifies nucleosomes and causes chromatin decondensation at its target gene$ c. removes a phosphate group and thereby inactivates its target protein d. binds the promoter of gene inhibiting RNA polymerase a binding e. adds a phosphate group which inhibits its target gene 20) "Signal" IS a small molecule Predict the correct is applied to the plant, according outcome when signal to the pathway shown in Figure 2, both in wild-type (wt)

Explanation / Answer

Answer: 19. (b) Modifies nucleosome and causes chromatin decondensation at its target gene.

Explanation: .The arrow depicted in fig 2 refers to gene activation by M protein, on target gene J. The modification of nucleosome and decondensation of chromatin, causes loosening of the histone proteins and increases accessibility of DNA for the transcription factors. As a result, the target gene is transcribed in the presence of proteins which helps in chromatin decondensation.

All the other options give examples of gene inactivation or inhibition, hence are incorrect.

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