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1. Explain why a microbe may give a faint-yellow result with a glucose test and a bright yellow result for a maltose test if both tests were made to the same concentration.
2. Design a media to determine if a bacterium could ferment arabinose to an acid product and or produce gas.
3. If an organism does not ferment sugars to an acid or gas, but instead uses respiration only, explain why the tubes will slowly turn yellow over the course of 1-2 weeks.
Estimate how many photons of light are minimally required to build one glucose molecule in photosynthesis and describe your answer
Cutting DNA with restriction enzyme, hybridizing the DNA with probe, electrophoresis of DNA, blotting the DNA.define the right order in which procedures are carried out.
In 1918, the tsar and tsarina of Russia and their five children were presumably assassinated and buried in an unmarked grave. Later, several women came forward and claimed that they were in fact Anastasia.
define Why do we use 16s rDNA for sequencing
The body’s oxidation of glucose is commonly described as the burning of fuel. Is this analogy correct? Explain your answer.
Robert, a smoker, is 52 years old. He has elevated blood pressure, in part, due to an elevated erythrocyte count. Knowing that smokers often have reduced plasma O2 levels, explain in detail (in a paragraph) why his erythrocyte count is elevated.
Suppose that the equilibrium potential for sodium ion across a skeletal muscle is +66 mv at a temperature of 37 degree celcius when the external concentration is 145 mM
What offspring phenotypes would you expect from mating between a 15-cm and 30-cm pig. How many pairs of genes are regulating the tail length character? (Hint: count the phentotypic classes, or find out the sum of the ratios of the classes)
Complete the following table titled 'Applications of Different Observational Study Designs' indicating for every objective under the pertinent study design if objective is 'suitable' or 'not suitable'.
Determine what makes a molecule a hydrogen bond donor or an acceptor? Can a hydrogen on a carbon atom be a hydrogen bond donor? Explain your answer.
Determine what kind of receptores are norepinephrine, epinephrine and phenylephrine? Are they slective or non-selective, alpha 1 or 2, beta 1 or 2.
If a couple is planning on having two children, what is the probability that both will be male? a)0 b)1/4 c)1/2 d)3/4 e)1
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