A researcher hypothesizes that plant Ieaf cells express fewer genes in the middle of the night compared to right before the sun rises She tests her hypothesis by introducing DNase into the cells at both timnes. She finds that DNA Is cut ruch more right before the sun rises and that more mRNA is present in the cells at that time. The best interpretation of these results Is that only post-translational modification contributes to gene regulation between the two night periods chromatin regulation is a crucial component f plant gene regulation overnight plants do not change gene expression between the two night periods



Answer :

The best interpretation of these results Is that, key element of plant gene control is through chromatin regulation.

All eukaryotes include chromatin that is crammed into nucleosomes; the majority of the chromatin protein component is made up of members of the histone family of proteins. Since histone proteins have a positive charge, they can get close to Deoxyribonucleic acid.

Core histones include three and four molecules of hydrogen, which are found on the inner of the nucleosome and bind to Deoxyribonucleic acid before other histones. The chromatin architecture blocks transcription factors, polymerases, and other nuclear proteins from accessing Deoxyribonucleic acid when it is substantially condensed.

A sequence of developmental transitions are involved in fruit production, and the fruit set process is crucial in determining crop yield.

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