Aresearcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. in one set of experiments using this procedure in drosophila, she was readily successful in increasing phosphorylation of amino acids adjacent to methylated amino acids in histone tails. which of the following results would she most likely see? a) inactivation of the selected genes b) decreased chromatin condensationc) abnormalities of mouse embryos d) decreased binding of transcription factorse) increased chromatin condensation

The correct answer is: B) decreased chromatin condensation

Histone modifications which include phosphorylation, methylation, acetylation and their reverse processes are post-translational modifications that can regulate gene expression. Their effect depends on the amino acid (protein) that is modified, and the combination of the other modifications.

These modifications regulate gene expression by organizing the genome into active form-euchromatin, where DNA is accessible for transcription, or inactive-heterochromatin, where DNA is less accessible for transcription.

interphase   is the cell cycle stage in which the cell acquires nutrients, creates and uses proteins and other molecules and starts the process of cell division by replicating the dna. it is the longest stage in the eukaryote cell cycle.

the following   can go wrong during interphase:   a base pair could be mismatched during the duplication process causing a mutation.   correct answer: c

explanation: