Assume a 100 base pair dna double helix contains 45 cytosines, how many adenines are there in this double helix?
this is pretty urgent pls !

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime

What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.

What is the difference between how ionic and covalent bonds form