What does the suffix sperm mean in the term angiosperm and gymnosperm? The suffix sperm in gymnosperm, stands for seed. Paired with prefix gymno, meaning naked, the term gymnosperm actually means naked seed. The prefix angio, meaning vessel or â¦ container, relates to the term angiosperm because angiosperms are plants that have contained seeds.
Report Abuse. There are about 25,000 base pairs in one human DNA molecule (one double-helix), however some animals have DNA that is 2,000,000 base pairs long. One DNA molecule is made up of two polynucleotide strands that form a double-helix using hydrogen bonds between the nitrogenous bases. A chromosome is one DNA molecule.
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating. 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.