Reference no: EM131126850

An ancient plant called horsetail contains 216 chromosomes. How many homologous pairs of chromosomes does it contain? How many chromosomes are present in its cells during metaphase?

Colchicine is a poison that binds to tubulin and prevents its assembly into microtubules; cytochalasins are compounds that bind to the ends of action filaments and prevent their elongation. What effects do you think that these two substances would have on cell division in animal cells?

If you could construct an artificial chromosome, what elements would you introduce into it, at a minimum, so that it could function normally in mitosis?

Staining isn't the only way scientists distinguish between different types of bacteria. Suggest another method that could distinguish among different types of bacteria that appear similar under the microscope. Explain how this method would work. (Hint: Different species may have different nutritional or metabolic requirements.)

Compare and contrast DNA and RNA. Discuss why humans did not evolve with one central repository of DNA, but rather it is replicated throughout the body? Your assignment should be 250-500 words in length. APA.

Use one of the topics explored so far in class to explain the statement:  "Science is a process in which one discovery builds upon others.  Some theories are wrong, but still contribute to the process." We have discussed evolution, how traits are passed through generations, cells, dna. Please explain in 4-5 sentences

What is autophagic intracellular digestion? Why is this type of intracellular digestion intensified in an organism experiencing starvation?

Describe the specific phenotype of the fruitless mutation at different temperature (20^oC and 35^oC). Assume all flies are 3 days old (not recently emerged from pupa stage), in your own words. Describe the specific phenotype of the fruitless mutation at different temperature (20oC and 35oC). Assume all flies are 3 days old (not recently emerged from pupa stage), in your own words.