1. What is a mutant screen? What is it used for?2. How does a restriction enzyme “know” where to cut?3. How does the length of the recognition site determine the length of the DNA fragments produced by the restriction enzyme (frequency of cutting)?4. How do restriction enzymes and ligase allow […]

Q. 1. Why may you want to alter ACC deaminase levels in bacteria symbiotically associated with plant root hairs? Diagram the logic of why this may “improve” the bacterial strain. 2. How can the plant stress response be altered in a fashion to “improve” the plant? Give a specific example […]

The nervous systems can be considered as communication networks whose integrated operation is responsible for a behaviouralresponse.’ Imangine the following three structures of a neuron, (athe dendrites, (b) the axon and the (c) the synapse,and pleaseexplain (i) how it contributes to these communication networks and(ii) how activity in the structure […]

Q1. Health official worldwide are concerned by the resurgence of diseases caused by bacteria that are resistant to standard antibiotics. For example, antibiotics resistant bacteria are now causing an epidemic of TB. Drugs can relieve symptoms in a few weeks, except it takes much longer to halt the infection, and […]