According to Chargaff's rule, base pairing in DNA should resemble which of the following? A = T; C = G
A = C; T = G
A = G; T = U
A = U; C = G

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

What is the following best defines climate?

What is the identity of the planets?