primase
(Science: enzyme) The enzyme that polymerises nucleotide triphosphates to form oligoribonucleotides in a 5′ to 3′ direction. The enzyme synthesises the rNA for RNA dNA sequences that later become okazaki fragments and also rNA primers for some types of phage using an sDNA template.
With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..
Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..