DNA Generalities

What is

The basic structure and functional units of all known organisms.

Basic structures

Cytoplasm

DNA

Cell membrane

Ribosomes

What is

DNA has a central part with a sugar and a phosphate, to which molecules called bases bind.
These bases can be of 4 types:

Adenine

cytosine

thymine

guanine

What is

The domain that includes microorganisms made up of prokaryotic cells, that is, cells that have free DNA in the cytoplasm, since there is no cell nucleus.

What is

organisms formed by cells with true nuclei

What is

In prokaryotic cells, DNA is a single molecule, usually a double-stranded (closed) circular molecule, located in a cell segment called a nucleoside.

What is

organisms have many DNA molecules per cell

what is

Binary fission is a form of asexual reproduction that occurs in archaea and bacteria. It consists of DNA replication, followed by cytokinesis (cytokinesis), resulting in two daughter cells. Bacterial DNA has a high mutation rate.

what is

In sexually reproducing organisms, in addition to mitosis, a type of cell division called meiosis also occurs. In the latter, the four daughter cells are derived from stem cells and each daughter cell has half the genetic content of the cell from which they are derived.