Dna's long chains of paired nucleotides are made up of

acids
nitrogenous bases
phosphates
sugars

How does an angiosperm prevent self pollination

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home. what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated