suppose we have three linked genes, all of which control different aspects of the same phenotype. We perform a testcross of a triple heterozygote (a+b+c+/a b c) with a triply homozygous recessive (a b c/a b c) and then count the number of progeny in each of the phenotypic classes. […]

A Lab on diffusion and osmosis. Basically, we had a15ml strip of dialysis tubing that was soaked. We tied a knotto form a sack. We added 3ml of starch, gelatine (protein),glucose and NaCl into the sack and we tied the sack with another knot. We rinsed it with a little […]

1. The development of genetic engineering has been hailed as a second Industrial Revolution. Do you believe this label is justified? How many products or applications of genetic engineering can you think off? 2. Geneticists are transplanting bacterial genes into tomato plants. One gene in particular delays production of ethylene […]

The sodium-potassium pump in animal cells requires cytoplasmic ATP to pump ions across the plasma membrane. When the proteins of the pump are first synthesized in the rough ER, what side of the ER membrane will the ATP binding site be on? A) It will be on the side facing […]