The chromosomes become visible under a light microscope during which stage of mitosis?
prophase
prometaphase
metaphase
anaphase

The chromosomes become visible under a light microscope during prophase stage of mitosis

Explanation:

Propohase -

The first phase of mitosis , in which the chromosomes becomes visible , as a distinct structure , the nuclear envelope breaks down and the spindle formation takes place .

Hence , this stage is visible under the light microscope.

The next phase is the metaphase , in which the chromosomes line up in middle of cell .

In the third phase , i.e. , the anaphase , the chromosomes moves towards the opposite sides of the vcell .

In the fourth phase , i.e. , the telophase , the two nuclei are formed .

In the last stage , i.e. , cytokinesis , the cell finally divides into two daughter cells .

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

b) the inside picture would look at a very high temperature in a very low ph