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What are alleles and what are their function?

Alleles are different forms of the same gene which are located on the same part of the chromosome. Genes are made up of information needed to produce different proteins, so alleles carry information to produ...
AS
Answered by Aneesh S. • Biology tutor
27610 Views

What are the different stages of Mitosis?

Mitosis occurs in a continuous, sequential order and has 5 stages: 1) Prophase 2) Metaphase 3) Anaphase 4) Telophase. Interphase Interphase occurs before Mitosis and is the process where the cell is preparin...
EC
Answered by Ellen C. • Biology tutor
20227 Views

Explain the process of eutrophication.

Leaching from the excessive use of fertilisers causes a nutrient build up in neighbouring rivers or lakes. As a result of the increased nutrients plants within the lake or river grow rapidly, including algae...
EC
Answered by Ellen C. • Biology tutor
27914 Views

What are the main parts of the digestive system, and how are they involved in digestion?

The main parts of the digestive system are the... - mouth - oesophagus - stomach - liver - gall bladder - pancreas - small intestine - large intestine There are three main enzymes involved in digestion: Amyl...
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Answered by Heather D. • Biology tutor
16420 Views

What is the function of the myelin sheath?

Neurones can either be myelinated - they are sorrounded by a myelin sheath, or unmyelinated - they are not surrounded by a myelin sheath. The myelin sheath is made up of Schwann cells and there are gaps in t...
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Answered by Chloe R. • Biology tutor
83074 Views