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Explain DNA replication

When a cell prepares to divide, the two strands of the double helix separate, serving as a template, for the creation of a new strand. The new strands are formed by adding nucleotides, resulting in the forma...
EP
2261 Views

How is a sperm cell adapted to it's role?

The role of the sperm cell is to fertilise the egg. It is adapted to fulfill this role in four main ways. Firstly it has a tail to help it travel to the egg. Secondly it contains the nucleus in the head that...
RO
Answered by Rhys O. • Biology tutor
67775 Views

What is the difference between a eukaryotic cell and a prokaryotic cell?

Eukaryotic cells include plant and animal cells. They have a cell membrane, cytoplasm and their genetic DNA is encased in a nucleus. Prokaryotic cells (bacteria) are much smaller in comparison. They have cyt...
IC
Answered by Isabel C. • Biology tutor
3613 Views

How and why are bacteria used in industry?

Bacteria are used in industry to produce enzymes and other proteins. Because they are prokaryotes and don't have a nucleus, every DNA plasmid that is taken up is translated. You just have to insert the plasm...
NW
Answered by Niclas W. • Biology tutor
3970 Views

Describe the basic principles of cell theory giving examples to support them

The cell is the smallest unit of life. Organelles cannot survive by themselves.Challenge to the theory: green algae - highly complex mono-nucleated cell that is up to 10cm. All cells come from pre-existing c...
KV
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