A mosquito is a eukaryotic organism that has 6 unreplicated chromosomes in its somatic cells during gap phase 1 (G1) of interphase. One of its cells is about to prepare to divide by meiosis. a) How many chromosomes will be present in the cell at anaphase I?

b) How many daughter cells will result at the end of this cell division, and how will they compare to the original parent cell?

c) Explain why the daughter cells produced during meiosis will be genetically distinct from each other.

Awoman whose sister tested positive for a specific mutation in the brca1 gene, which increases the risk for breast and ovarian cancer, is found not to have that mutation but does have a mutation of unknown significance near the known mutation site. how should this woman be counseled? select one: a. she should be informed that her risk for breast cancer is greater than the general population but not as great as her sister’s risk. b. she should be informed that because she does not have the mutation, her risk for breast cancer is not greater than that of the general population. c. she should be informed of her gene mutation status and be presented with all the available prophylaxis options and reconstruction options. d. she should be informed that she does not have the specific mutation but that because another mutation is present she should be vigilant about screening

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution