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Write a paragraph or two outlining your experience with the problem sets. For example do you now understand the concept behind DNA fingerprinting? Did you find it difficult to determine the father in the paternity suit or the rapist? Explain your answer.
What is the purpose of the Control Probe? Suppose you are a genetic counsellor and perform the FISH test on a newborn child. What is your interpretation.
Why are frameshift mutations more likely than missense mutations to result in proteins that lack normal function?
What would you predict would have been the phenotypes of the female progeny of the cross? b. What are the reciprocal classes for the male progeny?
Below is a segment of bacterial Lac Operon sequence. An E. coli transcript with the first 5 nucleotides 5' AUGU3'. Write the sequence of the primary RNA transcript starting at 5' aUUGU3'. include polarity of the transcript.
What type of protein secondary structure is characterized as being highly extensible because of its coiled structure?
Draw a diagram of the poly-adenylation process. How do we know that the Poly A tail is added post-transcriptionally?
A common symptom of pharyngitis is swelling of the anterior cervical lymph nodes. Why may lymph nodes swell in the presence of an infection? what else may cause swollen lymph nodes? (hint: What part of the immune response causes swelling?)
High concentrations of caffeine causes an isolated muscle to contract in the absence of any activity in the motor nerve. This contraction is not blocked by nicotinic blocking agents like curare. Where do you think caffeine acts?
Cells have internal signals that stop or start cell division, but there are also three main types of external signals. State all three with a brief explanation of what they are
Erin examined her somatic cell karyotype and saw 23 pairs of homologous chromosomes. What is a homologous chromosome pair?
What is a keystone species? a. A species that is not common, but whose presence has a large impact on other species. b. A predator that is at the top of the food chain--meaning that nothing eats it.
What are the structural components of biological membranes and their functions? Find out the most probable pathways or mechanisms by which molecules such as CO2, H20, CO, NH3, cholesterol, Na+, amino acids, DNA and H+ will cross the membranes?
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