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Question: From a bacteria stock you serially dilute 1/100 2 times, then serially dilute 1/10 2 times. From this last tube you plate 100 ul, which produces 156 colonies the next day. What was the the number of Colony Forming Units (CFU)/ml in the original stock solution?
Please enter your answer in scientific notation, with one decimal, using "E" notation. For instance, 22,360 would be written as "2.2E4"
Suppose that a dihybrid cross is made in which gene loci are autosomal, independently assorting, and incompletely dominant.
Birds and mammals have a four-chambered heart, with two ventricles and two atria, but other modern reptiles have a three-chambered heart, with just one ventricle. Paleontologists debate whether dinosaurs had a typical "reptile-like" heart or a "birdl..
What are some of the unique circumstances of forensic genetic evidence.
In humans, mitosis generates new cells for the growth and although mutations are the ultimate source of the genetic variability.
Which extinct species should be the best candidate to serve as the out-group for clade whose common ancestor occurs at position 2.
How might Lucy conceive a child with just one ovary and one uterine tube, widely separated on opposite sides of the pelvis like this.
If the fox were to feed only on insect-eating birds, how many square meters of plant material would be necessary.
A harder one which requires a little more algebra. You have 90.00 mL of dH20. How much glycerine would you have to add in order to make exactly a 1 percent (v/v) dilution?
define how this cell would be activated the cellular and molecular interaction(s), and the various steps and factors leading to an appropriate immune response to clear the toxin.
find if the individual had been exposed to this disease.
As a biologist it is your job to look for plants that have evolved structures with a selective advantage in dry hot conditions. Which of the adaptions would be least likely to meet the objective.
Did any of substances travel against their concentration gradient? Describe why or why not. Using your results from Chart 2, what was the fastest rate of facilitated diffusion recorded? _______________.
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