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Bacteria are prokaryotes. Knowing this, what can you state about the relative sizes of prokaryotes and eukaryotes?
Explain and elucidate how muscle contraction works at the molecular level: Explain how do actin and myosin interact in the sarcomere to bring about muscle contraction? What roles do ATP and calcium pl
The drug taxol, extracted from the bark of yew trees, consists of the opposite effect of the drug colchicine, an alkaloid from autumn crocus.
What is the probability that an individual haploid resultant from the meiotic division will encompass a complete parental set of centromeres (that is, a set all from one parent or all from the other
We have seen how your cells are associated to those of your parents. Explain how are your cells associated to all other humans?
You started life as a single cell; keep in mind Virchow's statement that all the cells come from pre-existing cells. Where did your original Cell come from?
A woman is known to be carrying a rigorous recessive autosomal gene. This is possible to find out whether a cell or polar body is carrying the normal or disorder recessive. The detection method dest
Describe the significance of the different positions of the chromosomes at these phases of mitosis and meiosis, and what does this signify for the kind of progeny cells that result?
Given a plant species A with a diploid number of 10 and a plant species B with a diploid number 0f 18, I explain how new polyploid species C could occur in a single generation from hybridization bet
If microtubules are stabilized what will be the result on the cell shape? On the organization of the Golgi and on mitosis?
I have been doing this problem several times now and I can't figure out how to do it. I am so confused. Can you as well describe the number of chromosomes you get from mitosis?
Explain the changes in clarity and viscosity of a nuclear suspension which takes place on the addition of Sodium Dodecyl Sulfate (SDS)? Why do they change take place?
While employing a compound microscope, you observe a cell which is undergoing mitosis. You see double stranded chromosomes and a partial nuclear membrane. What stage is this cell in?
Would you expect cancer to occur more frequently in types of cells which divide frequently (like skin cells), or in types of cells which divide seldom or not at all (such as nerve cells)? Describe y
If I were to make a cancer drug, at what phase of the cell cycle would the drug be most beneficial? Explain why? How is spending millions of dollars on cancer research to make drugs which target the
If homologous pair separates the normal throughout Meiosis I however do not separate during the anaphase of Meiosis II, what does the end product of that cell division look like? Sketch the end prod
If you think the RNA pill wouldn't work, can you suggest a reasonable hypothesis for the Planaria results? Explain how would you test your hypothesis?
Explain how are binary fission and mitosis dissimilar? Explain how are they similar?
Drugs which inhibit microtubule assembly are administered for some medical conditions. What will take place to the cell as a result? For what kind of conditions would such a drug be provided?
What are some factors which influence the cell cycle? (There are 4 of them that I have to know, but I had liked to know all if possible).
What structures do plant cells possess that animal cells don't? Describe the function of these structures? Where does aerobic respiration occur in the cells of eukaryotic organisms? Illustrate the res
Six centromeres are examined in a prophase cell from an organism. a) At prophase, explain how many pairs of chromosomes does this organism have?
Explain why might programmed cell death (apoptosis) occur via a different mechanism than from the cell death which takes place in necrosis?
Lab mice are immunized with a measles vaccine. Whenever the mice are challenged with the measles virus to test the strength of their immunity, the memory cells don't completely prevent replication o
Most of the cultivated bananas are triploid. Explain how could these be produced from diploid parent banana plants?