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8 Jun 2019

Please answer the following two questions with thourough, thoughtful answers that are about a paragraph in length. The following are for College Microbiology 1 (MICR 350) so relate the answers to microbiology. Please answer thoughtfully as I need good responses. Thank you.

1. If the lacZ gene has a nonsense mutation in its open reading frame, will lacY still be translated?

2. The bacterium Lactococcus lactis was voted the official state microbe of Wisconsin because of its importance for cheese. During cheese production, L. lactis ferments milk sugars to lactic acid: C6H12O6 --->2C3H6O3 <-----> 2C3H5O3- + 2H+ Large quantities of lactic acid are formed, with relatively small growth of bacterial biomass (numbers of cells). Why do you think biomass is limited? Chees making usually runs more efficiently at high temperature; why?

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Sixta Kovacek
Sixta KovacekLv2
10 Jun 2019

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