Every living organism falls into one of two groups: eukaryotes or prokaryotes, with cellular structure determining which group an organism belongs to. Prokaryotes are unicellular and lack a nucleus ...

Believe it or not, all of the cells within a multicellular organism (excluding red blood cells and gametes) contain exactly the same DNA. In which case, why is a heart composed of cardiomyocytes? Or ...

Genes encode proteins and proteins dictate cell function. Therefore, the thousands of genes expressed in a particular cell determine what that cell can do. Moreover, each step in the flow of ...

Also, as the prokaryotic cell lacks a clearly defined nucleus and both transcription and translation takes place in the cytoplasm, there is no need to transport the mRNA to the cytoplasm after ...

Prokaryotic and Eukaryotic Cells: The cell is the basic unit of life and forms the building blocks of all living organisms. It was discovered by Robert Hooke In 1665. Some cells have membrane-bound ...

How does a gene, which consists of a string of DNA hidden in a cell's nucleus, know when it should express itself? How does this gene cause the production of a string of amino acids called a protein?