Covalently closed circular dna
(Science: molecular biology) a circular molecule of double-stranded dna which is supercoiled, or coiled up on itself due to internal tensions, because there are no breaks in the phosphate backbone (upon which the nucleotide bases are mounted) to relieve the tensions and allow it to form an open circle.
Covalently closed circular dna (Science: molecular biology) a circular molecule of double-stranded dna which is supercoiled, or coiled up on itself due to internal tensions, because there are no breaks in the phosphate backbone (upon which the nucleotide bases are mounted) to relieve the tensions and allow it to form an open circle...
Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..
The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
