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10 rabbits were introduced onto a small island at the beginning of 1995. One year later there are 16 rabbits. (a) Assuming that this population is growing geometrically, how many rabbits will there be in at the beginning of 2005? (b) Again, assuming geometric growth, what is the doubling time of this population?
Which organelle generates oxygen? Which organelle consumes oxygen? Explain why are viruses not considered to be living?
Why is polyploidy fatal for humans? What is the differences between Karyokinesis and cytokinesis?
Examples of positive and negative control of transcription can be found in the regulation of expression of the bacterial operons lac and trp. Use these two operon systems to describe the difference between positive and negative regulation.
Explain why is it advantageous (to you the consumer and the producer of the product) to include the sugar substitute instead of natural sugar in the food products you identified.
A human RBC is approximately 8 micrometers in diameter. An unknown bacterium measures 1 ocular space using the oil immersion objective compared to 3 spaces on the stage micrometer. How big is the unknown bacterium ?
plan the structure of butanol and show water molecules in hydrogen bonds to the butanol. How many should there be? remember the H bonding rules.
c. Which antibiotic(s), if any, will cells be resistant to ifthey have obtained a plasmid containing inserted foreign DNA? d. How would you distinguish recombinant and non-recombinant plasmids by agarose gel electrophoresis.
What is the genotypic and phenotypic ratio in the offspring produced by the cross BbCc x bbCc if B is black color, b - yellow; C- long tail. c -short tail? Assume complete dominance for the trait. Explain results of the cross using Punnett square ..
Outline and discuss the major differences between prokaryotic and eukaryotic transcription. What would happen, in terms ofthe lac operon in E. coli, in the presence of lactose ANDglucose? Be specific
Plicae and intestinalvilli
Po2 (torr) has the following values 1,5,10,15,20,25,30,35,40,50 Y has the following values 0.001, 0,09, 0.36, 0.60, 0.78, 0.86, 0.91, 0.93, 0.95, 0.97. Graph the data above as a hill plot and estimate the "n" value of mutant hemoglobin.
Briefly explain why digester sludge accounts to 5-10 percent of the total flow but contains 25-30 percent of the organic nitrogen.
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