Test Vocabulary

lgarymichel's version from 2016-01-17 15:14


Question Answer
DNAdeoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes.
chromosomea threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes
chromatideach of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA
genea unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring
alleleone of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome
replication process of making an identical copy of a section of duplex (double-stranded) DNA, using existing DNA as a template for the synthesis of new DNA strands. In humans and other eukaryotes, replication occurs in the cell nucleus.
centromerethe part of a chromosome that links sister chromatids
nucleotideone of the structural components, or building blocks, of DNA and RNA. A nucleotide consists of a base (one of four chemicals: adenine, thymine, guanine, and cytosine) plus a molecule of sugar and one of phosphoric acid