AP BIOLOGY

Detailed explanation-1: -The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C). The order, or sequence, of these bases determines what biological instructions are contained in a strand of DNA.

Detailed explanation-2: -Two nitrogen-containing bases (or nucleotides) that pair together to form the structure of DNA. The four bases in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T). These bases form specific pairs (A with T, and G with C).

Detailed explanation-3: -A set of five nitrogenous bases is used in the construction of nucleotides, which in turn build up the nucleic acids like DNA and RNA. These bases are crucially important because the sequencing of them in DNA and RNA is the way information is stored.

Detailed explanation-4: -DNA carries all the information for your physical characteristics, which are essentially determined by proteins. DNA contains the instructions for making a protein. In DNA, each protein is encoded by a gene (a specific sequence of DNA nucleotides that specify how a single protein is to be made).

Detailed explanation-5: -Nucleosomes in turn form the repeating unit called chromatin which are thread-like stained bodies. Later, the chromatin fibres are further coiled and condensed to form chromosomes. Hence, the correct order is DNA