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The process of gel electrophoresis uses the fact that DNA fragments are negatively charged (due to the bulky, negative phosphate groups within the sugar-phosphate backbone) in order to pull the fragments ...

When a course of antibiotics is taken, non-resistant bacteria should be killed. However, genetic mutations can lead to certain individuals becoming resistant to a particular antibiotic. The mutated gen...

Break this question down into the four stages: primary, secondary, tertiary and quarternary and for each one describe the structure and what the non-covelant interactions are that hold the protein toge...

Codominant alleles are different to the dominant and recessive alleles studied by Mendel in his studies on pea plants. When codominant alleles are expressed together, aspects of both genes are expresse...

All cells use DNA as a code for making proteins: the sequence of base pairs in a long, string-like DNA molecule acts as a set of instructions for making a protein, which is also a long, string-like mol...