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What are the four most abundant elements in a human body?

Chaperonins such as the GroEL/ES system

Proteins that share 30% sequence identity will be members of the same superfamily.  

Which amino acid substitution is likely to be least conservative?

Which of the following forces is favorable for protein folding?

There are several known post-translational modifications. Give an example of one and describe the purpose of this modification.

Osmotic pressure is a function of

After a soil was saturated with water, you measured the total volume and pore space of your soil as 400 cm3 and 220 cm3, respectively.  Assuming you had 100%, 50%, and 20% saturation of the pore space as the soil dried, calculate the volume of air, water, and the solid at 100%, 50%, and 20% saturation of the pore space?

Which of the following means of estimating soil water levels gives a measure of water content?

Employers are required to record (on the OSHA log) every injury that occurs at work.