3. A microscope has a field diameter of 2,000 microns under a total low power magnification of 100X. This microscope has a 10X power ocular. Given this information, answer the following questions that appear below.
a. What is the power of the low power objective lens?
b. If a cell which is observed takes up approximately 1/6 of the field of view under low power,
what is its approximate length?
c. If we now switch to high power using the 60 X objective lens, what is the magnification of
this microscope?
d. Under the high power magnification you calculated in part (c.) above, what is the
approximate length of our cell under high power?
About how much of the high power field diameter (fractional amount) does this cell occupy?

You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation