Which type of bond makes up the backbone of DNA strands by linking together adjacent nucleotides?

If a structural gene in an organism's genome is comprised of 29% guanine nucleotides, what percentage of the gene is comprised of cytosine nucleotides?

There is a certain type of chemical bonding between the paired nucleotides on each strand of DNA which helps maintain the double-helix structure of DNA by attracting each strand to the other. What type of bonding is responsible for this?

When synthesizing a strand of double-stranded DNA, which of the following could be a plausible combination of nitrogen bases?

With respect to DNA, the terms 3' and 5' (pronounced 3-prime and 5-prime, respectively) are used in order to refer to one strand or the other. What do these two terms signify?

If a structural gene in an organism's genome is comprised of 33% adenine nucleotides, what percentage of the gene is comprised of cytosine nucleotides?

A sample of DNA is sequenced and found to contain guanine. What percentage of thymine does it contain?

Which of the following is NOT found in DNA?