Using the graph, write a brief paragraph comparing the similarities and differences in the three populations in terms of normal lactose tolerance. % Normal Lactose Tolerance 100 90 80 70 60 50 40 30 20 10 0 0 2 6 Normal Lactose Tolerance by Ethnicity 10 Age in Years 12 14 16 Peruvian Mestizo -U.S. Caucasian African Americans
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Having trouble finding the differences and similarities here
![Using the graph, write a brief
paragraph comparing the
similarities and differences in
the three populations in terms
of normal lactose tolerance.
% Normal Lactose Tolerance
100
90
80
70
60
50
40
30
20
10
0
0
Normal Lactose Tolerance by Ethnicity
8
10
Age in Years
12
H
14
16
18
Peruvian Mestizo
U.S. Caucasian
African Americans](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbae71de7-550e-48ee-82e0-f5f82a206e21%2F82ddbc7f-7916-4a5c-9909-f36637fe5b59%2Fzht13wi_processed.jpeg&w=3840&q=75)
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- Paratuberculosis is a contagious, chronic and sometimes fatal infection that primarily affects the small intestine of ruminants. Mycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of paratuberculosis. This kind of disease can exist undetected in herds for years. In order to detect the paratuberculosis among ruminants, thiol modified oligonucleotide having the sequence of 5’- GAT GAC ATC GCA GTC GAG CTG- 3’ was functionalized in the 15 nm gold nanoparticles. What is the corresponding tRNA in the thiol modified oligonucleotides in 5’ → 3’? Answer Format: (Letter only, no spaces)Penicillin was first used in the 1940s to treat gonorrhea infections produced by the bacterium Neisseria gonorrhoeae. In 1984, according to the CDC, fewer than 1% of gonorrhea infections were caused by penicillin-resistant N. gonorrhoeae. By 1990, more than 10% of cases were penicillin resistant and a few years later the level of resistance was 95%. Explain the various ways this resistance could be spread among the cells. Could this resistance pass to other infectious bacteria from N. gonorrhoeae?b. Neurospora has an arginine amino acid synthesis pathway shown below: ornithine citrulline arginine NH H2N H2N OH H2N HO HO NH2 NH2 ÑH2 Enzyme A Enzyme B Enzyme C ↑ ↑ Gene A Gene B Gene C Suppose I have a neurospora strain that has a mutation such that it will not grow unless I supplement the media (food) with arginine (but not with citrulline or ornithine). What gene is mutated? Explain your reasoning. C. Suppose I take the strain above that only grows with arginine supplements and cross it to a different mutant Neurospora strain that grows with arginine and citrulline supplements but not ornithine supplements. Assming genes A, B and C are unlinked and there is only one mutation per strain: i) What percentage of the progeny will grow on ornithine? ii) What percentage on citrulline? iii) What percentage on arginine? Show your work for i), ii) and iii). |
- Define the term pyogenic, what is this term referring to?Consider the five E. coli merodiploid strains listed here. Strain #1 I+P+O+Z-Y+/I+P+OcZ+Y+ Strain #2 I+P+O+Z+Y+/I-P+OcZ+Y- Strain #3 I+P+O+Z-Y+/I-P+OcZ+Y- Strain #4 I-P-O+Z+Y-/I+P+OcZ-Y+ Strain #5: ISP+O+Z+Y+/I-P+O+Z+Y- Which of these strains will be unable to express lactose permease under any conditions? Select all correct answers. A.)Strain #3 B.)Strain #4 C.)Strain #2 D.)Strain #5 E.)Strain #1Consider the five E. coli merodiploid strains listed here. Strain #1 I+P+O+Z-Y+/I+P+OcZ+Y+ Strain #2 I+P+O+Z+Y+/I-P+OcZ+Y- Strain #3 I+P+O+Z-Y+/I-P+OcZ+Y- Strain #4 I-P-O+Z+Y-/I+P+OcZ-Y+ Strain #5: ISP+O+Z+Y+/I-P+O+Z+Y- Which of these strains will be inducible for expression of b-galactosidase? Select all correct answers. A.) Strain #2 B.) Strain #3 C.) Strain #1 D.) Strain #4 E.) None of these F. )Strain #5
- Consider the five E. coli merodiploid strains listed here. Strain #1 I+P+O+Z-Y+/I+P+OcZ+Y+ Strain #2 I+P+O+Z+Y+/I-P+OcZ+Y- Strain #3 I+P+O+Z-Y+/I-P+OcZ+Y- Strain #4 I-P-O+Z+Y-/I+P+OcZ-Y+ Strain #5: ISP+O+Z+Y+/I-P+O+Z+Y- Which of these strains will express b-galactosidase constitutively? Select all correct answers. A.)Strain #5 B.)Strain #1 C.)Strain #4 D.)Strain #2 E.)Strain #3Chlamydia are pathogenic bacteria that must be grown within a eukaryotic host cell. They rely on the host cell for many nutrients, including nucleotides, lipids, and amino acids. It is thus no surprise that when grown in co-culture with a host depleted of any of these metabolites, chlamydial growth declines. However, high levels of certain amino acids also inhibit chlamydial growth. Specifically, the amino acids leucine, isoleucine, methionine, and phenylalanine slow down the growth by inhibiting the amino acid transporter called BrnQ. On the other hand, if valine is present in the medium these amino acids have no effect on BrnQ. Discuss how this might be possibleStreptococcus pneumoniae is a Gram-positive bacterium that colonizes the mucosal surface of the upper respiratory tract in humans. The presence of this bacterium in the nose and throat is widespread in the population, and in most people, colonization with Strep. pneumoniae is asymptomatic. The figure attached shows a comparison of in vitro growth curves of the wild-type strain of Strep. pneumoniae, as well as a Strep. pneumoniae mutant strain with a defect in one bacterial gene. The graph on the right shows the growth curve following addition of lysozyme during the logarithmic phase of bacterial growth. Which statement could account for the data in these graphs? Strain B is wild-type Strep. pneumoniae, and strain A is a mutant that cannot modify its peptidoglycan to be lysozyme-resistant. Strain B is wild-type Strep. pneumoniae, and strain A is a mutant that that expresses increased levels of LPS. Strain A is wild-type Strep. pneumoniae, and strain B is a mutant that cannot modify its…
- What is the Standerd of Enumeration of salmonella in chicken and chicken sausage and water melon?One of the early results shows that the post-centrifugation pellet of encapsulated cells also contains EA1 and/or Sap. Why is this not proof that Bacillus anthracis cells have both an S-layer and a capsule simultaneously? I need help finding the answer in the article and explain in short answer link to article: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC106848/Before development of a vaccine against this microbe, thedisease it caused accounted for two-thirds of bacterial meningi-tis cases during the first year of life but is still the number oneleading cause of mental retardation in patients who survive seri-ous disease due to permanent central nervous system disorders.What is the microorganism?(a) Haemophilus influenzae type B(b) Haemophilus influenzae type A(c) Neisseria meningitidis(d) Streptococcus pneumoniae(e) Listeria monocytogenes