In this article we will discuss about the biological significance of DNA and RNA. DNA usually includes two nucleotide polymers joined together by the matching or complementary shapes of their bases. The relationship between bases in a DNA double helix is a lock and key relationship. The four bases of DNA can interlock to form two kinds of base pairs [...]
In this article we will discuss about:- 1. Concept of DNA 2. Structure of DNA 3. Unusual Bases 4. Replication. Concept of DNA: DNA is present in the cells of all plants, animals, prokaryotes and in a number of viruses. In eukaryotes (e.g., Escherichia coli, a bacterium) the genetic material consists of a single giant molecule of DNA about 1,000 [...]
In this article we will discuss about Nucleus on Cell Biology:- 1. Introduction to Nucleus 2. Definition of Nucleus 3. Number 4. Shape and Size. Introduction to Nucleus: The nucleus is an important cell organelle. It is just like the central nervous system of our body. So the nucleus is simply called the brain of the cell or 'controlling centre [...]