What links the two strands in a dna helix together in the middle ?

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?

Match each description to the level of organization

Which of the following statements about polysaccharides are correct? choose all that apply.cellulose is a linear, unbranched polymer of glucose monomers.starch is typically more highly branched than glycogen.cellulose is a major component of both plant and animal cells.glycogen is a storage form of glucose in animal cells.glycogen is the most abundant organic compound on earth.starch and cellulose are found in plants.