If an enzyme with no inhibitor has a Vmax of .091 abs/min and a Km of .31 mM. An inhibitor is added (1 uM) which changes the Vmax to .036 abs/min and a Km of .13 mM, so it has a Ki of -1.72 and a Ki’ of .65 uM. […]

Conditional lethal mutations are very useful in genetic and biochemical analyses of complex processes such as DNA replication. Temperature sensitive (ts) mutations, which are one form of conditional lethal mutation, allow growth at one temperature (for example, 30oC) but not at a higher temperature (for example, 42oC). A large number […]

QUESTION 1Which of the following statements best defines the two main differences existing between prokaryotic and eukaryotic cells? A. Prokaryotic cells possess a nucleus but lack organelles while eukaryotes lack both a nucleus and organelles. B. Prokaryotic cells possess a nucleus and organelles while eukaryotes lack both a nucleus and […]

Q1. Seedless watermelons are actually a product of “mistakes in meiosis” These seedless watermelon are triploid (3n) and are produced by crossing a tetraploid (4n) strain with a diploid (2n) plant. Briefly explain why this mating produces a triploid individual. Why can mitosis proceed normally in triploid cells, but meiosis […]