Describe the relationships among chromatin,
a chromosome, DNA, and a gene.

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

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.

The fluid mosaic model of the membrane proposed that membranes