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  • Q : Give an example of the mutation accumulation hypothesis....
    Biology :

    Give an example of the mutation accumulation hypothesis (of senescence)- you may use a hypothetical organism and/or traits ,provided it is realistic.

  • Q : Why is starch required for thermogenesis....
    Biology :

    Question 1: Why is starch required for thermogenesis? Question 2: Which of the following is not a mechanism by which bacteria acquire genetic variation? A. mutation B. horizontal gene transfer C. pick

  • Q : What is the nervous system....
    Biology :

    Question 1: What is the nervous system? Question 2: Cyanobacteria are very important in the ecosystem cycling of what element? a) sulfur b) nitrogen c) carbon d) oxygen e) phosphorus

  • Q : What is the function of a dust cell....
    Biology :

    Question 1: What is the function of a dust cell? Please do not provide cut and paste answers and please include a source. Question 2: What concentration of competitive inhibitor is required to yield

  • Q : What is the importance of clonal deletion in the thymus....
    Biology :

    Question 1: What is the importance of clonal deletion in the thymus? Question 2: Describe how the immune system responds to cancer, and how cancer cells evade immune responses.

  • Q : List correct sequence the four stages of infectious disease....
    Biology :

    Question 1: A patient died from septice caused by E. Coli. The patient had undergone surgery to remove a portion of hos colon. Explain why this microbe, which normally lives in the colon could kill

  • Q : What do homeotic, or hox genes control....
    Biology :

    Question 1: Explain why catalyst must affect the rate of a reaction in both directions. Question 2: What do homeotic, or Hox genes control? What would happen if you were to mutate one of the Hox genes

  • Q : Name the infections diseases can be transmitted directly....
    Biology :

    Question 1: Describe the number between a lytic & lysogenic bacteriophage infection Question 2: Since viruses lack metabolic enzyme, how can they synthesize necessary viral components Question 3:

  • Q : Name the infections diseases can be transmitted directly....
    Biology :

    Question 1: Describe the number between a lytic & lysogenic bacteriophage infection Question 2: Since viruses lack metabolic enzyme, how can they synthesize necessary viral components Question 3:

  • Q : How could you distinguish between cospeciation and hostshift....
    Biology :

    Question 1: Are microbially produced fuels an economically viable renewable fuel source? Question 2: How could you distinguish between cospeciation and host shift?

  • Q : How could you distinguish between cospeciation and hostshift....
    Biology :

    Question 1: Are microbially produced fuels an economically viable renewable fuel source? Question 2: How could you distinguish between cospeciation and host shift?

  • Q : What traits are recessive....
    Biology :

    Two cooties with the following genotypes are mated: Cootie 1 (RrWwPpLlBb) and Cootie 2 (RRwwPPLlBB). What is the phenotype of each cootie? What traits are dominant? What traits are recessive?

  • Q : What traits are recessive....
    Biology :

    Two cooties with the following genotypes are mated: Cootie 1 (RrWwPpLlBb) and Cootie 2 (RRwwPPLlBB). What is the phenotype of each cootie? What traits are dominant? What traits are recessive?

  • Q : What is the goal behind desensitization....
    Biology :

    Question 1: Explain how auditory system detects the loudness of speech? and how it encodes pitch and frequency. Question 2: What is the goal behind desensitization(allergy shot)?

  • Q : How is fermentation different than anaerobic respiration....
    Biology :

    Question 1: How is fermentation different than anaerobic respiration? Question 2: What is meant by a cycle in PCR? What are the stages in each cycle and what happens in each stage?

  • Q : What are restriction enzymes....
    Biology :

    Question 1: What are restriction enzymes and what are they used for in molecular biology? Question 2: What is Taq Polymerase? Question 3: Where was/is it found in nature?

  • Q : Define the three mechanisms of ecological succession....
    Biology :

    Describe succession along coastal sand dunes, bogs and old fields. Be sure to both distinguish between primary and secondary succession and name specific plant species in each en

  • Q : Why donnot they make mouse-flavoured cat food....
    Biology :

    Question 1: What is the difference between passive and active transport through a cell membrane? Which method allows a cell to concentrate a substance inside itself? Question 2: Why don't they make

  • Q : What is taq polymerase....
    Biology :

    What is the difference between a transgenic animal and a cloned animal? What are restriction enzymes and what are they used for in molecular biology?What is Taq Polymerase?

  • Q : Briefly explain the function of atp synthase....
    Biology :

    Question 1: Briefly explain the function of ATP synthase and the importance of ATP to all cells. Question 2: Why would a typical animal cell lyse (explode) if placed into a container of plain water?

  • Q : What type of molecules are enzymes....
    Biology :

    Question 1: What type of molecules are enzymes ? Question 2: What wavelengths of light are best suited for use in photosynthesis?

  • Q : What color is the sky really....
    Biology :

    Question 1: What color is the sky really? Question 2: Why are enzymes critical to the function of cells? That is, why not simply let chemical reaction occur without interference?

  • Q : Would the presence of an rna synthesis inhibitor....
    Biology :

    Question 1: Would the presence of an RNA synthesis inhibitor be likely to interfere with replication in bacteria? Question 2: Design a yeast strain that smells like bananas when fed a medium that co

  • Q : What mechanism for the evolution of altruism....
    Biology :

    Question 1: What mechanism for the evolution of altruism, if any, is likely to operate in blue jays? Question 2: State two conditions that are required for the mechanism that you propose. Pick one

  • Q : How much atp from cataabolism of unsaturatedfatty acid....
    Biology :

    Question 1: How much atp from cataabolism of unsaturatedfatty acid? Question 2: What are the possible outcomes when populations that have been long separated geographically come back into secondary

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