BIOD 210 Module 4 Exam Genetics

BIOD 210 Module 4 Exam Genetics Complete Questions and Answers 1.Explain how have multidrug resistant pathogens in health clinics been propagated ANS The over use antibiotics prescribed by doctors has increased the resis- tance of bacteria against the drugs. Overtime, the bacteria mutated and produced offsprings with the same resistance to the antibiotics. So, the treatment does not work on certain bacterial infections and diseases as they used to.

2.When the bacteria are cultured but separated by a filter so that they cannot directly touch, one of the bacterial strains can grow well on minimal medium. What type of genetic transmission occurred in this experiment?Explain how you know.ANS Transduction because the bacteria was able to grow without direct contact to the transmit genetic material 3.Does spontaneous mutation positively or negatively affect evolution?Briefly explain your answer. 1 / 2

ANS Positively, because the mutations allow the organism to better function and survive in their environment. It is also a higher possibility of the organisms passing this down to their offsprings which would be considered evolution after a certain number of generations.Biological fitness increases 4.T/F A bacterium that can grow well on minimal medium is an example of a protroph.ANS True 5.Match the following terms with the correct description Enzyme Operon Gratuitous inducer Structural gene Prophage ANS Enzyme - Acts as a catalyst for Operon - Clusters of genes and Gratuitous inducer - Activates genes but Structural gene- Gene not involved in Prophage - Virus DNA integrated 6.A gene that is expressed all of the time regardless of conditions is called