Explanation for Question 47 From the Reading Section on the 2018 March Sat
Hey guys. So question 47 is asking us according to the passage, 2 which statement best explains the hypothesis that Paula drains group tests it in their 3 experiment with mice. So let's go back to the experiment with mice. 4 Let's take a look at what they're saying here as to their, 5 um, what statement best explains the hypothesis that the group tested let's 6 find their hypothesis here. So, 7 um, let's come around to say it's comes about right 8 down here, where it says to explore that possibility. 9 The researchers designed a new study using mice. 10 They gave the flu vaccine to three different groups, mice genetically engineered to lack 11 the gene for TLR five, somebody said don't have TLR five germ-free mice with 12 no microorganism in their bodies and mice that had spent four weeks drinking water 13 laced with antibiotics to obliterate most of their microbiome. 14 So mice, without this microbiome in mice with it, 15 seven days after vaccination, all three groups showed significantly reduced concentrations of vaccine specific 16 antibodies in their blood compare with vaccine and controlled mice. 17 Um, they're saying blood antibody levels, 18 you know, dropped down and whatnot. 19 And you know, based on all this, we can see that they saw similar 20 results, blah, blah, blah, with a specific type of bacteria. 21 Hmm. So I'm feeling like, I feel like we're not seeing it as much 22 in their immune cells. So if we're not seeing as much in there, 23 let's go back even furthe...