As of 2015, the world population is 7.244 billion and recent reports suggest humans have between 20,000 and 25,000 genes and at least 8% of these genes have multiple alleles. Based on the data you have collected using [http://scienceprimer. com/punnett-square-calculator], would you expect there to be individuals that have identical genotypes (outside of identical twins)? How about identical phenotypes, could there be someone in the world that is phenotypically identical to you? Please explain your answer.

Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4