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Preparation: This is a complex question requiring several strands of knowledge. It is best to break down the question into smaller chunks and answer each of those, to gain maximum marks. ...
DNA, or deoxyribonucleic acid, is a doubled-stranded helix made up of nucleotides. Each nucleotide has one of four bases attached to it. The bases of the nucleotides of one strand base pair to the complim...
The Hardy-Weinberg principle is used in population genetics. Population genetics is the study of allele frequencies in populations and how they change over time. There are 2 equation used in the H...
Alleles give variation within the phenotype expressed by a particular gene. Let's use the ability to roll the tongue as an example. Individuals can either roll their tongue, or not, and this is controlled...
Diffusion is a passive process whereby molecules move from areas of high to areas of low concentration, down the concentration gradient. Osmosis is also a passive process however only refers to movement o...
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