Which of the following statements about enhancers is NOT true? RNA polymerase Il

Question

Which of the following statements about enhancers is NOT true? RNA polymerase Il binds enhancers to initiate transcription Factors that bind enhancers are important for recruiting factors that facilitate transcription The transcription factors that bind enhancers during development often change as regions of the organism become more specifically defined Genes can have more than one enhancer to ensure that transcription occurs in the right location and time during embryonic development. Enhancers can be bound by transcription factors to activate or repress transcription

Explanation / Answer

1) 1st option is not true: RNA pol II bind enhancer to initiate transcription.Because For initiation sigma factor in bacteria and TATA binding intiation factor is required not enhancer. Enhancer is bind and can change the rate of transcription either enhance or reduce the trancription.

2) All progengy would be wildtype because nanos is a materal cytoplasmic deteminant which is require to detemine primary anterio posterior axis prior to fertilization. It istotally maternal contribution that's why null mutation in father for this protein doesn't affect the progeny when such mutated male mated with wild type female.

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