Biology, 29.08.2020 22:01 SynysterWxlf661
Lactobacillus is a bacteria that lives inside humans. These bacteria live on the nutrients from our bodies. They help to keep our gut clean and healthy. S. typhi is a bacteria that enters our bodies through contaminated food. This bacteria causes infections in the body. Based on this information, which two statements about the association between these bacteria and humans are true? 1. Lactobacillus shares a parasitic relationship with humans. 2. S. typhi shares a parasitic relationship with humans. 3. Lactobacillus and S. typhi have no relationship with humans. 4. S. typhi shares a mutualistic relationship with humans. 5. Lactobacillus shares a mutualistic relationship with humans.
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What is a group of organisms that are closely related and share similar characteristics
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Transposon can cause mutations in genes at or near the site of transposon insertion. it is possible for these elements to transpose away from their original site, causing a reversion of the mutant phenotype. in some cases, however, even more severe phenotypes appear when these elements excise from this site, due to events at or near the mutant allele. what might be happening to the transposon or the nearby gene to create more severe mutations?
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