8A 7. Evaluating Data on Phenotypes

Question 1

what is particularly useful when determining influences on phenotype

Answer 1

twin studies

Question 2

what is the phenotype of an organism the result of

Answer 2

organisms genotype and interaction of genotype with environment

Question 3

why are twin studies useful in determining influences on phenotype

Answer 3

twins genetically identical
any differences in phenotype must be due to environmental factors
phenotype similar in identical twins = genetics probably plays more important role
phenotype different between twins = environment must have a larger influence

Question 4

using a large sample size is better for drawing valid conclusions. why?

Answer 4

large sample size is more representative of the population.