From a hospital patient afflicted with a mysterious illness, you isolate and culture and then purify DNA from the culture. You find that the DNA sample obtained from the
culture contains two different kinds of DNA: one was labeled as double-stranded
human DNA and the other was labeled as single stranded viral DNA. However, a
mix-up occurred and the labels were accidentally removed from the test tubes. How
can you figure out which test tube contains which DNA, if you only have access to
the nucleotides in each sample? (2 marks)

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

it marks things for degradation via the proteasome. it alters there celluar location.