Pick 3 different subphylla of protozoan parasites and discuss the clinical syndrome associated with a representative genus of each
In: Biology
what is the role of hypothalamus in gender identity?
In: Biology
List two classes/types of antibiotic for each of the following targets: Cell wall Synthesis and Protein Synthesis. Describe how this class of antibiotics specifically work and why this makes them selectively toxic.
In: Biology
1. Without or under limited oxygen, respiration switches to fermentation. In humans this process breaks down glucose to yield
A) 2 ethanol, 2 ATP
B) 2 lactate, 2 ATP
C) 2 ethanol, 29 ATP
D) 2 lactate, 29 ATP
2. Rubisco is
A) the enzyme that fixes CO2 to RuBP
B) a slow enzyme
C) an enzyme that can catalyze two different reactions
D) All of the above
3. Photosynthesis consists of which two set of reactions that are linked by redox reactions to generate chemical energy
A) light capturing reactions and splitting water
B) light capturing reactions and chemiosmosis
C) light capturing reactions and Kelvin cycle
D) light capturing reactions and oxidative phosphorylation
4. The M-phase of a somatic cell consists of
A) DNA replications, mitosis
B) meiosis, cytokinesis
C) mitosis, cytokinesis
D) DNA replication, meiosis
In: Biology
Which of the following is correctively matched?
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Gonorrhea—protozoa infection |
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Leptospirosis-bacterial infection |
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Candidiasis-virus infection |
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trichomoniasis-bacterial infection |
In: Biology
In: Biology
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What is happening inside of the leg muscle cells of a runner during a 100-meter dash compared to a 2-mile race? What biochemical pathway(s) (aerobic respiration or anaerobic respiration) is/are being utilized in each race, and why? Explain why photosynthetic organisms are considered the ultimate source of food. What would happen to humans if all the plants died?
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In: Biology
Describe the developmental origin of the adrenal glands. For the steroid hormones cortisol and aldosterone, explain how synthesis of the hormones are regulated in the adult. What would be the consequences of a sudden failure of adrenocortical function and over production of hormones? (500words)
In: Biology
Discuss the Extinction Risks for Coral Reefs as a result
of Coral Bleaching.
Coral reef ecosystems around the globe are threatened by human
interferences and climate
change. This has led to many scientists conducting studies on
global coral reef ecosystems to gain
a better understanding of the cause and effects of coral reef
damage.
We will take four opportunities to engage in discussion on the
selective topic such as :origins,human impacts, biodiversity,
environmental factors and algal diversity . You will identify the
significant that associates the topic and overall
invertebrates.
Key connections:
Climate change; global warming, symbioses, diversity Important,
human impact, and coral reef conservation.
Important Questions:
Can it be reversed? Or can coral habitats be restored?
Examples of resources: Primary literature information.
In: Biology
Explain how left-right asymmetry is established in the
mammalian
embryo, including cellular and molecular detail in your answer.
What are cilia and what patterning defects might you expect in
embryos that fail to form cilia?(500words)
In: Biology
The three forms of open neural tube defect are
anencephaly,
craniorachischisis and spina bifida. Explain the embryological
origin of
these disorders, with reference to the morphological events that
occur
during normal mammalian neural tube closure. In your answer
describe
what is known of the causes of these disorders, at the cellular
and
molecular level? (500words)
In: Biology
1. A. What is parthenogenesis? How does this seems to occur in birds? What is the main barrier to this happen in mammals? How could parthenogenesis be engineered in mammals?
B. What would be needed to regrow a human limb in the lab to later be transplanted on an amputee?
In: Biology
This is a three part question:
a) What are some major differences between making transgenic mice by microinjection and creating knockout mice by homologous recombination (before the advent of CRISPR/Cas9 technology)?
b) Explain how negative and positive selection work when creating a knockout mouse. Why are both types of selection useful?
c) Why is the creation of knockout mice so much easier when using CRISPR/Cas 9 genome editing?
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In Covid-19 disease, what is the role of interferon and the adaptive immune response?
In: Biology
What is the split gal4 system? Why is it needed to label some cell types? Describe an experiment that combines split gal4 with scRNA-seq to precisely define cell identities in the drosophila brain. Describe the protocol of the experiment in detail
In: Biology