Which of these are the correct base pairs in dna?

a- adenine and uracil
b- cytosine and guanine
c- cytosine and adenine
d- thymine and guanine

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna. b) they study alleles that contain genes, which are chromosomes. c) they study chromosomes that contain genes, which are dna segments.

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?