The following question(s) relate to the data table below, showing typical fluctuating pH and dissolved oxygen levels in a fish pond with a heavy concentration of algae over a 24-hour period.TimeOxygen (ppm)pH2 a.m.4.57.74 a.m.2.87.26 a.m.2.26.88 a.m.2.56.810 a.m.3.97.2Noon6.57.72 p.m.10.08.34 p.m.12.18.86 p.m.13.19.28 p.m.13.09.210 p.m.12.08.8Midnight10.88.3Upon closer examination, the fish appeared to have died from a lack of oxygen. What time of day did the fish most likely die?
A. At sundown
B. Around midnight
C. In the middle of the afternoon
D. Just before dawn
Answer: D
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A(n) ________ mycelium is a branching network of fibers on and/or beneath the surface of the agar growth medium.
Fill in the blank(s) with the appropriate word(s).
A testcross is used to
a. determine if a parent with a dominant trait is heterozygous or homozygous. b. determine which allele is dominant. c. determine if the progeny of an experimental cross will get a random assortment of alleles. d. prove that an organism is true-breeding. e. cross an individual with a dominant phenotype with a homozygous dominant individual to prove the alleles are indeed dominant.
A 57-year-old woman was admitted to a hospital with an infected toe, and the infection was spreading rapidly. The damage was being caused by an unknown microorganism that could not be cultured in the lab Doctors observed that antibiotics, which kill only prokaryotes, were ineffective. They suspected that the microbe was a fungus, so they tried the drug Amphotericin, which targets the ergosterols in fungal cells. Because animal cells contain cholesterols, not ergosterols, they are unaffected by the drug. Shortly after receiving Amphotericin, the patient improved, her infection ceased, and she was released from the hospital. In this scenario, what was the hypothesis?
A) Antibiotics will not kill the microbe because it is a fungal species.
B) A microbe that has cholesterol is causing the infection.
C) Why didn't the antibiotics kill the microbe that caused the infection?
D) If the infection is caused by an animal, then Amphotericin will cure the patient.
E) The infection will spread rapidly.
Can you suggest me a thesis topic related to medical microbiology that is feasible in the Philippines?
I would appreciate if the methodology requires the integration of other disciplines such as molecular biology, biotechnology, biochemistry, biomedical field. Thank you.