PLEASE HELP IM ON A TIMED TEST!! If thymine makes up 30% of a DNA sample what is the percentage of Adenine?

What is the percentage of Adenine in this DNA sample?

A. 15%
B. 60%
C. 30%

Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.

What is gene expression control that occurs after the generation of rna

The structure of a dna molecule is best described as a. one long strand of nucleic acids b. two strands of dna nucleotides joined by hydrogen bonds c. two strands of amino acids joined by hydrogen bonds d. one long strand of amino acids