Question 1: In Drosophila melanogaster, eyeless (ey) is a recessive trait in which the eyes are tiny or absent. The ey locus is found on chromosome 4. Monosomy and trisomy for this very small chromosome are compatible with survival and fertility. A trisomic wild-type male with the genotype ey+ ey […]

1. Love ’em or hate ’em, smoking bans are sweeping the nation. Does your town have one? What are the health risks to individuals who smoke? And what about the risk to those who are exposed to second hand smoke? Let’s discuss these risks from an A&P standpoint! 1. Discussion […]

Point mutations are generally caused by a change in the single nucleotide, either by deletion, insertion or base change, in the DNA or RNA material; this is a change in the genetic material structure, the organism that is affected by the point mutation is known as appoint mutant, that is […]

1. What is the significance of Rf(relative to front) values? What information can be deduced about the molecules separated by paper chromatography, assuming that you know nothing about each molecule except where it was extractedfrom? 2. Based on your results, what are the optimum wavelengths of light for absorptionby each […]