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A gene is a section of DNA or RNA that codes for a protein. Alleles are different versions of the gene. For example, if a gene coding for a particular enzyme mutated, then there would be two alleles o...
Define competition: competition is an interaction between organisms where one organism has a negative effect on the fitness of the other organism
Define interspecific competitio...
There are three main ways that an invading pathogen can result in disease:
Damage or destroy host cells
This is host specific and ligands on the pathogen mus...
Blood glucose is controlled by a negative feedback mechanism.
When blood glucose levels rise, this is detected by beta cells in the Islets of Langerhans in the pancreas. In response, the...
Genes, chromosomes and DNA are three vital components of cells and many students often confuse them with each other.
DNA stands for Deoxyribose Nucleic Acid. DNA molecule...
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