How does an XX female inherit her two sex chromosomes

In the cholera case study, what did the Europeans put in the village drinking water with hopes of curing the cholera infection?

Calculate the allelic frequency of S1 using the data below. Round answer to 2 decimal places.  Genotype Number S1S1 4 S1S2 38 S2S2 134

What is the most likely mode of inheritance for the pedigree below?        

Dr.Gantar is studying leopard gecko coloration.  She found three genes that appear to determine some coloration and are linked.  Based on the data below, the middle gene is .  st = stripes y = yellow patches sp = spots F1 Testcross Progeny Phenotype Number spotted (+ + sp) 613 striped, yellow (st y +) 611 yellow (+ y +) 231 striped, spotted (st + sp) 217 striped (st + +) 131 yellow, spotted (+ y sp) 125 striped, yellow, spotted (st y sp) 6 wildtype (+ + +) 7 Total 1941

The process of equalizing the amount of protein produced by X-linked genes in males and females is known as .

Cancer cells have too much

Gene expression is a two step process. First, DNA is converted to and then to .

Alternate versions of genes are called . If a diploid organism has two of the same version, the of the organism is called . 

How many chromosomes are in each human cell?