4. Numerous historically widespread species have become critically endangered due to reduction in population sizes associated with human induced habitat fragmentation. As a conservation geneticist, plan an experiment to assess the genetic effects of habitat fragmentation and population size reduction of an endangered species. Discuss the methodology (including choice of genetic markers), expected data, methods of analysis and conservation recommendations.?

19. Suppose we have a biased coin that comes up heads 55% of the time. We perform an experiment where we toss the coin until the first tails appears. Let T be the number of tosses until the first tails. What is the expected value and standard deviation for T? What is the probability that it takes 5 or more tosses before the first tails appears?

While performing an experiment with an electrolytic cell (both cathode and anode are zinc in 1 M ZnSO4 solution), with the cathode in a beaker and the anode in a porous cup inside the same beaker? What function does the porous cut perform if ions can still move through it? What is the porous cup separating? If the porous cup were removed (or if there was a hole in it), would the reaction stop? Why?

A 10.0 mL sample of liquid bleach is diluted to 100. mL in a volumetric flask. A 25.0 mL aliquot of this solution is analyzed using the procedure in this experiment. If 10.4 mL of 0.30 M Na2S2O3 is needed to reach the equivalence point, what is the percent by mass NaClO in the bleach? Hint: Percent by mass is grams of NaClO / mass of bleach. Presume a density for the bleach of 1.00 g/mL.

A 8.024 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 20.75 grams of CO₂ and 4.248 grams of H₂O are produced.

In a separate experiment, the molar mass is found to be 136.2 g/mol. Determine the empirical formula and the molecular formula of the organic compound.

Enter the elements in the order C, H, O

This thought experiment is originally due to Sir Isaac Newton. We have a sphere of water floating freely in an opaque box in intergalactic space, held together by surface tension and not rotating with respect to the distant galaxies. Now we set the box and water to rotate about some axis and we notice that the sphere flattens into an oblate spheroid.

How does the water know it

A student is studying simple harmonic motion of a spring. She conducts an experiment where she measures the amplitude and period of an undamped system to be 24 ± 2 mm and 0.40 ± 0.020 seconds, respectively. Using the equation for displacement as a function of time y(t) = Acos(ωt), what is the uncertainty of her displacement calculation in mm for t = 0.050 ± 0.0010 seconds? Please explain thouroughly.

In a double-slit experiment, light with a wavelength λ passes through a double-slit and forms an interference pattern on the screen at a distance L from the slits. What statement is true for the resulting interference pattern if the frequency of the light increases?

OPTIONS:

The distance between maxima stays the same.T

he distance between maxima increases.

The distance between maxima decreases.

Not enough information given.

1. What is the condition for light in order to make interference pattern from Young-double slit?
2. How do you make single source to make a source for young double-slit experiment?
3. What happen if you use electron instead of light, what pattern you expect to see, and why?
4. What are the parameters that can affect the interference pattern (mention at least 3)

In regards to human research (IRB). In your opinion do you think that there may be excessive controls in place over research. We are all aware of atrocities such as the Tuskegee experiment and the MK ultra projects that performed research on unknowing people. But in those instances, where full disclosure and acceptance by the participants has been received. Is there truly a need in your opinion for all the red tape?