How does an infectious disease become a pandemic disease? Include using key terms reservoir, mode/ vehicle of transmission, vectors, disease development, and based on the covid 19 that is happening this time. please and tnx.

The clinical symptoms of two forms of galactosemia show radically different severity.

1. Deficiency of galactokinase
2. Deficiency of UDP-glucose:galactose 1-phosphate uridylyltransferase

Although both types produce gastric discomfort after milk ingestion, deficiency of the transferase also leads to liver, kidney, spleen, and brain dysfunction and eventual death.

Explain, what products accumulate in the blood and tissues with each type of enzyme deficiency? (3 point)

List the symptoms for each type of deficiency. (3 point).

Explain which of these products is more toxic and why?

a)

How can increased CO2 in atmosphere affect the ratio of proteins and carbohydrates for humans?

B)

Discuss the hormonal regulation of germination.

c)

What properties of water help the plants with carrying it from root to the top of the tallest of the plants? What is the mechanism suggested for this transport?

What is the simplest evolutionary explanation for:

1. Nucleotide synthesis uses several amino acids
2. Deoxyribose is made from ribose

Hint: Determine which one came first. Provide detailed answer for full credit!

The allele b occurs with a frequency of 0.6 in a population of clams. Assuming that the population has reached Hardy-Weinberg equilibrium, the frequency of the genotype Bb is

Why is Conservation Biology is different from most sciences in that it is goal-oriented, and what are the challenges this presents in terms of maintaining scientific objectivity and credibility? please explain in a paragraph

In Darwinian evolution, which do you think appeared first - the Host or the virus?
Explain your answer in depth.

In B cells, how many chances are there to make a productive heavy chain and how many chances are there to make a productive light chain? The options are 2 chances for light & 2 chances for heavy OR 2 chances for heavy & 4 chances for light. Please explain why

A student is given the task of determining the rate of an enzymatic reaction under defined conditions (i.e known substrate and enzyme concentrations; optimal temperature, pH, etc). Assume the student knows nothing about enzymes or how to perform this task. Since you just completed this task virtually, provide a detailed description of the directions you would give the student on how to determine the rate of the reaction? Give sufficient details so that the student with no knowledge of how to complete this task could be successful.

Describe & discuss two items/concepts about scientific methodology? What question(s) remain unclear about scientific methodology?

Propose a 20 amino acid sequence for an amphipathic beta-hairpin strand.