Come up with two practical, real-world scenarios in which testing for bio molecules would be beneficial and describe them

Come up with 3 practical, real-world scenarios in which testingfor biomolecules would be beneficial and describe them.

3) You are studying a protein that you think consists of a heterodimer composed of a 30 kDa and a 40 kDa subunit, which are joined together by disulphide bonds. In addition to your protein sample you have available a SDS-PAGE gel, an electrophesis apparatus like the one you used in the laboratory, and a Bio-Rad Precision Protein Kaleidoscope standard (Bio-Rad catalogue number 161-0375). You also have access to two different sample buffers. Buffer A contains 4% (v/v) SDS and 5% (v/v) ß-mercapto ethanol. Buffer B contains 4% (v/v) SDS but no ß-mercapto ethanol. As per the practical, samples are heated at 95oC for 4 minues before they are loaded onto an SDS-PAGE gel and electrophoresed.

Describe the experimental methods that would allow you to test your hypothesis. Provide sufficient detail such that an interested reader could faithfully repeat your experiment. In your answer describe the chemistry and biochemistry involved in your treatment.

(You determine hypothesis)

BIO W1A3: Darwin's Theory

The minimum length for this assignment is 1,200 words.

Darwin was not the first to consider evolution as a process but he did come up with the first effective explanation for how it happens. Describe Darwin’s theory of evolution by natural selection. Explain how this theory was a major advance over prior ideas as to how organisms changed over time. Give evidence in support of evolution and describe the driving forces for evolutionary change.