Adiploid nucleus of drosophila melanogaster contains about 3.4 x 108 nucleotide pairs. assume (1) that all nuclear dna is packaged into nucleosomes and (2) that an average internucleosomal linker size is 60 nucleotide pairs. how many nucleosomes would be present in a diploid nucleus of this species and how many molecules of histone h2a, h2b, h3 and h4 are required?

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.

Which type of landform forms at the plate boundary as a result of divergent stress