Explain why myo D acts as a master switch and sets a cell down a particular developmental pathway. You may also want to review briefly what transcription factors are. (Please try to keep it short)

one serum sample was heated to 56 C for 30 minutes to inactivate the complement proteins. Identify three ways in which this reduces the ability of the serum to kill the bacteria?

If a person were to refuse vaccinations, and therefore transmit a deadly disease to a susceptible person such as a young infant, should the unvaccinated person be criminally prosecuted? Why or why not?

describe the function of mrna rrna and trna

Why doesn't nonrandom mating directly change allele frequencies and is thus not, a mechanism of evolution? However, nonrandom mating does influence genotype frequencies. Can someone explain this in more depth?

why different alcohol yield different reults for membrane dissolution?

why we use buffer, ethanol, SDS in DNA and Protien experiements?

In paragraph form, explain how photosynthesis is an oxidation/reduction reaction in detail. (A) What is the chemical formula showing the reactants and the products? (B) What is oxidized and what is reduced? (C) In your answer, you must explain the relationship between oxidation/reduction and the position of shared electrons in chemical bonds--Which bonds have more potential energy, and why? (D) Is photosynthesis anabolic or catabolic? (E) Is photosynthesis exergonic or endergonic--explain why?

In paragraph form, explain how an electrochemical gradient is generated and how it is used to synthesize ATP in the mitochondrion during cellular respiration. In your answer you should discuss (A) which structures/enzymes/proteins and major electron donors/acceptors are involved, (B) where it happens, and (C) what all of the inputs and outputs are. (D) Your answer should discuss potential and kinetic energy in this process. Finally, (E) what would happen to this process if oxygen became unavailable, and why?

Compare channel and carrier transport proteins.

a) You have an exponentially-growing population of rodents, with an annual λ of 1.35.

Calculate the number of individuals added to the population in a given month when there are 250, 500, 1000, 5000, or 10,000 individuals to start with. (2pts)

b) Now impose density dependence on the population with a logistic model in which K = 6500 individuals. Again, calculate the number of individuals added to the population in a given month when there are 250, 500, 1000, 5000, and 10,000 individuals to start with. (2pts)

c) How does population growth compare between the two models (exponential vs. logistic) at the low and at the high starting population numbers? (2pts)

Present the numbers (rounded to two decimal places) for a), and b) in a table in the space below, along with the answer for c).

1a. List and describe 3 types of epigenetic inheritance.

1b. Describe the process of translation termination.

1c.What are the 3 main differences in how bacteria undergo translation?

1. What are secreted proteoglycans found in the extracellular matrix?

2. Which of the following signaling molecule is first produced upon activation of olfactory receptor neurons to mediate "smell"?