Dna contains the sugar deoxyribose and the base thymine, while rna contains the sugar ribose and the base uracil. a. true b. false

What percentage of light hits earth's surface directly?

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?