Draw the chemical structure of the three components of a nucleotide, and then link the three together. What atoms are removed from the structures when the linkages are formed?

Figure 1.6 presents simplified depictions of nucleotides containing deoxyribose, a nucleotide base, and a phosphate group. Use this simplified method of representation to illustrate the sequence 3'-AGTCGAT-5' and its complementary partner in a DNA duplex.

What kind of bond joins the C to the G within a single strand?

Consider the sequence 3'-ACGCTACGTC-5'.

What is the total number of noncovalent bonds joining the nucleotides of the complementary strands?

Consider the sequence 3'-ACGCTACGTC-5'.

What is the total number of covalent bonds joining the nucleotides in each strand?

Consider the sequence 3'-ACGCTACGTC-5'.

What is the double-stranded sequence?