Hello pls help its my last question! Ill give brainiest Variation in DNA is the direct result of which of the following? *

1.Asexual Reproduction
2.Crossing Over
3.Interphase
4.Somatic Cells

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.