The mitotic index is defined by the following ratio: [Number of cells undergoing mitosis]/[total number of cells present]. Identify three normal human adult cells/tissues in which the mitotic index is very high and three normal human adult cells/tissues in which the mitotic index is very low or zero. For each, […]

1) Which spectral type has the hottest stars? Which has the coolest stars? 2) As we go from cooler stars to hotter stars, what happens to the Main Sequence life span?  3) How do we know that a sample is similar to the whole population? 4)  Extra Credit: The “Thick […]

Discussion 1. External stimuli begin a neuronal process from transduction to sensation to perception, which results in a response. Will a change in transduction, sensation, or perception create the greatest change in the response? Why is this so? 2. Movement is controlled by the brain. Which regions exert the greatest […]

1. In a large, randomly mating herd of cattle, 16 percent of the newborn calves have a certain type of dwarfism due to a homozygous recessive allele. Assume the population is in Hardy~Weinberg equilibrium. a>What is the frequency of the recessive dwarfing allele?b> what is the frequency of the normal […]