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I) In general stem cells ability to reproduce (proliferate) declines with age? True or False II) Studies using micro arrays have the benefit that
a. they are automatedb. they are quantitativec. they examine thousands of genes simultaneouslyd. they do everything on the lines above III) Studies of transcription patterns across an animal's lifetime only make sense if
a. the animals were born at the same time b. the rates of transcription are identical c. the same tissues are examined each time d. protein synthesis mirrors transcription IV) What are the effects of senescent cells on the aging body, why don't they have the same effects in young bodies? V) The experiments in heterochronic (cross-age) transplantation showed that
a. younger stem cell populations flourished when transplanted into old recipientsb. stem cells derived from older donors proliferated faster than young stem cells in a young animalc. the age of the recipient was more important than the age of the donor in a cross-age transplantation experimentd. none of the above
Write down an essay that describes how you would conduct an experiment for your plant hypothesis include an instance of how you would use this method in a real life situation explain each step of the method as it applies to your web experiment and re..
Dynein is missing from cilia and flagella of the individual with a specific inherited disorder. These individuals have severe respiratory problems, and if males, are sterile. What is the structural relationship between these 2 symptoms.
Mitochondria are now day descendants of endosymbiotic bacteria. How many different RNA polymerases would you expect to find in Drosophila mitochondria?
You measured the purified protein concentration, which is 5 ug/uL. You decided to load 20 ug protein to the gel. How would you dilute your sample?
Which of the following is an example of potential rather than kinetic energy?
Based on the amount of dissolved gases in water, do you see a possible evolutionary reason why mammals never have any underwater breathing mechanisms?
A) In a population (Z), the frequencies of genotypes of a two allele locus (B and b) are f(BB) = 0.3, f(bb) = 0.6, f (Bb) = 0.1. Calculate the frequencies of both alleles.
chemosynthesis and fermentation are both ancient metabolic pathways and were probably used by some of the earliest life
CRP protein binds to the lac operon under conditions of low glucose. Its role in the expression of genes in the lac operon is.
q1. johnny a five-year-old boy has been growing by leaps and bounds his height is 100 percent above normal for his age.
For vaccines to be beneficial, the vaccine antigens must activate the immune system to generate memory cells. Describe the properties of memory B and T cells that make them more effective in responding to the infection.
What phenotypic results would occur in a cross between a member of an mt+ strain resistant in both genes and a member of a strain sensitive to the antibiotic? What results would occur in the reciprocal cross?
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