If the heritability of height is calculated to be .80, this means 80 percent of ____.
a. your physical height is due to genes, and the other 20 percent is due to environment
b. people studied have the same genes for height
c. the differences in height among people are due to genes
d. your genes for height have been activated
Question 2
Todd is a twenty-seven-year-old stockbroker. One of Todd's more striking features is his heightjust 4 feet 2 inches tall. His parents, brothers and sisters, grandparents, aunts, uncles, and cousins are all over six feet tall. Based on your knowledge of the interplay between genetics and environmental factors, what is the most likely explanation for Todd's height?
a. an inherited gene
b. an early childhood illness
c. a sedentary lifestyle
d. genotype normalization
Independent assortment produces 50 percent recombinants
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