In the fruit fly Drosophila melanogaster, eye color is influ…

In the fruit fly Drosophila melanogaster, eye color is influenced by an X-linked gene.  Also, females are XX and males are XY for sex chromosomes.  The alleles for eye color work as follows: XR = dominant; red eyesXr = recessive; white eyesY = Y chromosome; male, no eye color gene on this chromosomeYou examine a vial of 100 flies that are all offspring from a single genetic cross. You find both red-eyed males and white-eyed males but only red-eyed females.  The genotypes of the parents were apparently:

A dialysis bag that is permeable to water but not NaCl is pa…

A dialysis bag that is permeable to water but not NaCl is partially filled with 30% NaCl solution, closed, and then weighed.  Next, it is put into a beaker containing 10% NaCl solution and allowed to sit for 1 hour.  If you then weigh the dialysis bag and its contents, you should find that the weight has:

A population of four o’clocks is being studied to see if it…

A population of four o’clocks is being studied to see if it is in Hardy-Weinberg equilibrium.  Recall that in four o’clocks flower color is determined as follows:RR = redRr = pinkrr = white Let:p = frequency of R alleleq = frequency of r allele You count 100 plants total: 36 plants with red flowers, 48 plants with pink flowers, and 16 plants with white flowers. What is the value of “q” (the frequency of r) for this population?