DNA

DNA stands for Deoxyribose [blank_start]Nucleic[blank_end] Acid. A monomer unit of DNA is a [blank_start]nucleotide[blank_end]. Each nucleotide has [blank_start]3[blank_end] (<< type the number please) parts: a phosphate group, a deoxyribose [blank_start]sugar[blank_end], and a nitrogen [blank_start]base[blank_end]. There are [blank_start]4[blank_end] (<< type the number please) types of nitrogen bases: adenine, guanine, [blank_start]thymine[blank_end], and cytosine. Adenine and guanine are larger and therefore are [blank_start]purines[blank_end]. Thymine and cytosine are [blank_start]pyrimidines[blank_end].

Guanine is labeled below. What is letter Y?

There are [blank_start]2[blank_end] hydrogen bonds between A and T. There are [blank_start]3[blank_end] hydrogen bonds between G and C.

If F is a purine, what is the label next to it? What must the other item be labeled?

Is letter D representing the 3' end or the 5' end?

The bond between 2 nitrogen bases is called a ___1___ bond and the bond between a phosphate group and a deoxyribose sugar is a ___2___ bond.

If the GC content in a DNA molecule is 56%, what is the percentage of all the four bases?

If thymine makes up 15% of the bases is a specific DNA molecules, then guanine makes up [blank_start]35[blank_end]% in the DNA molecules.