Kristina Howard (pointed to by arrow) recently had a mammogr…

Kristina Howard (pointed to by arrow) recently had a mammogram that showed a lump in her right breast.  She and her doctor are concerned that it might be cancerous.   Kristina’s oncologist needs more information about any family history of breast or ovarian cancer in her family so Kristina met with a few relatives to get the information presented below.  (Note:  dx means age of diagnosis of either breast or ovarian cancer as indicated).    In order to determine if Kristina has inherited the BRCA1 cancer gene, the doctor took a sample of cells from the inside of her mouth and took them to the laboratory.  In analyzing these cells, he would expect each cell to be ______________ and have _______________________ chromosomes.

61 dark-skinned individuals living near the equator leave th…

61 dark-skinned individuals living near the equator leave their homeland and travel to a small, uninhabited island close to Newfoundland, Canada to start a new colony. Over many generations, you would expect the skin color of the population to ______________.  This is an example of ______________________ selection.

61 dark-skinned individuals living near the equator leave th…

61 dark-skinned individuals living near the equator leave their homeland and travel to a small, uninhabited island close to Newfoundland, Canada to start a new colony.  These individuals arrive in Canada in September and in December you take another blood sample from each individual.  Now, you expect their Vitamin D levels to be ____________ and their folate levels to be _______________.