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1. Define natural competency?
2. What is a serial dilution?
3 True or False. You can use plaque assay to determine the number of a lysogenic phage?
4. Can a spectrophotometer be used to measure viable counts of bacteria in culture?
5. Is transmittance or absorbance directly related to the concentration particles present in a solution?
6. Add 1 ml sample to 9 ml diluent → 1:10 (1/10, or 10-1or -1) dilution
Add 1 ml sample to 99ml diluent → 1:100(1/100, or10-2 or -2) dilution
Add 0.1ml to 0.9 ml diluent → ? dilution
(use the 1st two examples as a guide to do the 3rd one)
why surface area to volume ratio is an adaptive trait and why different surface area to volume ratios would be selected by these two very different environments.
In humans visual information from the right side of the visual field is represented within the left occipital lobe. However, our eyes are both pointed forward, and there is a lot of overlap in their visual fields.
MRSA, a type of Staph infection, is caused by a strain of bacteria that isresistant to many types of antibiotics. Knowing what you know aboutadaption and natural selection, describe how it would have been possiblefor a bacterium that previously could..
Would a typical human chromosome fit inside the nucleus (with a diameter of 5 micrometers or 5000 nanometers)? If not, explain how a typical human chromosome fits inside the cell during interphase?
What is the diffeence between inducible logic versus deducible logic. Define the words: Biosphere; Population; Community; and Ecosystem. Define the terms: Matter; Molecule; and Compound
The Cleaver family awaited the birth of Claudette's puppies with anticipation. But shortly after standard poodle gave birth to six pups, two of them.
During organ transplantation, doctors are careful to ensure a close tissue match between the MHC types of donor and recipient.
Which vitamin is essential for the formation of bones.
Which of the following represents two things that are identical - the sequences of DNA in two sister chromatids before meiosis
what is a plate count and why would it be used instead of direct microscopic counts or turbidity measurements?
Since L-glucose cannot be metabolized, it has no caloric value. Why is L-glucose not the perfect diet aid? An uncatalyzed reaction has a rate of 4.2 x 10-7 sec-1. When an enzyme is added the rate is 3.2 x 104 sec-1. Calculate the rate enhancement c..
Respiratory dust particles that can reach alveoli have the sizes of, Which of the following hormones can enter the targetcell?
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