There’s a worldwide outbreak of an unknown infectious viral disease. However, in your country thousands of patients are admitted to a hospital daily due to severe headaches and pulmonary complications and this are the suspected symptoms caused by the virus in question. As one of the best epidemiologists in your country, you were invited to assist to find the solution for this pandemic

Question: Explain in detail how you would conduct the study to clarify the etiology and the risk factors for this pandemic.

Describe and ecological study in which using the lincoln-peterson or Schnabel Index might be useful?

1. With the aid of a suitable diagram, explain the biological hazards of a laser and the necessary safety precautions when using the laser.

You are trying to calculate the map distances between three genes in Dragonflies. The gene extrawings (ex) produces an extra pair of wings and is recessive to the wild-type four wings (ex+). The gene eyeless (ey) causes the eyes not to form properly and is recessive to the wild-type normal eyes (ey+). The gene blue (b) causes the body to be a neon blue color and is recessive to the wild-type black (b+). A heterozygous dragonfly is crossed to a tester male and the following progeny are obtained: 321 with extra wings and no eyes, 284 with blue bodies, 72 with extra wings, 69 with blue bodies and no eyes, 27 with extra wings and blue bodies, 21 with no eyes, and 4 wild-type.

What is the distance in cM between extrawings and eyeless? (Please answer to two decimal places)

What is the interference?

Explain cellulose biosynthesis - substrate, catalytic process, resulting structure (primary, secondary, tertiary (supramolecular) cellulose structure)

Each of the following is associated with haemophilia A or B EXCEPT:

Select one:

a. Recurrent haemarthroses in a young boy

b. Normal prothrombin time

c. Prolonged prothrombin time and normal activated partial thromboplastin time

d. Prolonged activated partial thromboplastin time

e. A factor IX level below 5%

The final product of the Calvin Cycle (the product that EXITS the Calvin Cycle, assuming successful carboxylation) is

To be in an active state, several enzymes of the Calvin Benson cycle require

The dry-weight mass of a plant (the weight of plant solids after water is removed) is from

Which statement is correct

The antennae complexes of photosynthesis gather light energy and channel it toward (choose ALL that apply)

Assuming linear electron flow from H₂O to NADP⁺
(i.e., the Z-scheme) what is the theoretical minimum number of photons required to produce one molecule of O₂ evolved (remember each water release a pair of electrons, it takes 2 H₂O to produce O₂)?

During CYCLIC electron flow, electrons from ferrodoxin are transferred to

What the heck am I talking about when I say “Reduction of plastoquinone to plastoquinol occurs on the stroma side of the thylakoid membrane, and oxidation of plastoquinol back to plastoquinone occurs on the lumen side of the thylakoid membrane”? This describes:

The Calvin-Benson cycle takes place predominantly in the

Put the following in the correct order for linear photosynthesis (the Z-scheme)

CF-type ATPase

Plastoquinone/plastiquinol

Photosystem II

Photosystem I

Cytochrome b6f

Plastocyanin

QUESTION 5

The experiment conducted by Andre Jagendorf with isolated thylakoid membranes proved that

possible solutions:

QUESTION 6

For every molecule of oxygen (O₂) produced, how much ATP and NADPH are produced?

possible solutions:

QUESTION 7

For every molecule of carbon dioxide (CO₂) incorporated into sugar, how much ATP and NADPH are consumed?

Possible solutions:

QUESTION 8

When a plant is illuminated after a period of darkness, what changes occur in the environment of the chloroplast? Choose all that are correct

Possible solutions:

QUESTION 9

During the Calvin-Benson Cycle

Possible solutions:

Which of the following are used as diagnostic signs of myeloma?

Select one:

a. Anaemia and recurrent infections

b. Anaemia and fractured bones

c. Recurrent infections and kidney failure

d. Bone pain and increases in prostate specific antigen levels

e. Presence of paraprotein and bone pain

How are environmental factors used to control microbal growth? Give some everyday examples.

QUESTION #1

What was the pre-genome sequencing estimate for the total number of genes in the human genome and how many genes were discovered once sequencing was complete? Why do you think there was such a discrepancy between these numbers?

QUESTION #2

Why is looking for regions of the genome that are very similar across organisms (conserved) such an important part of understanding genome evolution?

Can someone please explain membrane potential, diffusion potential, and equilibrium potential and any way they may be related? Also, what is each thing dependent on, and what are the units used to measure each?

What is the best immunological assay for each of the following situations? For each situation, name the assay, describe how it works, and why it is appropriate. Assume in both cases that any type of specific antibody needed for the assay you propose is available.

a. Determine the number of memory T cells and naïve T cells based on the level of CD45RA present on the surface of the T cells.

b. Determine the level of IgG specific to measles in the blood of a person who has not been immunized but may have been exposed.

What organisms that could invade during phagocytosis and how?