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Elements belonging to group 1 are known as noble gases or inert elements and they do not participate in bond formation.

Analyze which of the following radioactive tracers would you use when you want to use a radioactive tracer that will label only the protein in an RNA virus where suppose the virus is composed of only a protein coat and an RNA core. Make sure to give reason for your answer. Radioactive P       Radioactive N        Radioactive S        Radioactive C

Answer any one of the following two options (a or b): a. Distinguish between polar and non-polar covalent compounds based on electronegativity. Make sure to define electronegativity.    b. If there are hydrophobic amino acids, will they be inside the protein structure or outside? Why?  

An ionic chemical bond is one in which   

According to Octet rule atoms of an element will tend to have 8 electrons in their 2nd shell.

The macromolecule that can serve as the primary source of energy: 

A protein will be positively charged when it contains excess of amino acids that have the following functional group in their R-chain:

Water is a polar molecule because the electronegativity of hydrogen is higher than that of oxygen and therefore the H-atoms develop a partial negative charge.

A solutions architect is designing an online shipping application running in a VPC on EC2 instances behind an ELB application load balancer.    Each EC2 instance accesses a database on a private subnet. The architect wants to ensure zone failure fault tolerance of the EC2 instances.  What must the architect do to ensure this?

Which AWS services is best used to store data that can be versioned and replicated automatically by the most cost effective means?