1) Cross individual II-2 with an individual having the same genotype as IV-1. What is the chance the offspring will have the trait? a) 0% b) 25% c) 50% d) 100% 2) How many generations are in this pedigree? a) 2 b) 3 c) 4 d) 5 3) What is the relationship between II-1 & IV-1? a) grandmother/grandson b) mom/daughter c) grandmother/granddaughter d) grandmother/great-granddaughter 4) In a pedigree, the square represents which sex? a) male b) female 5) In a pedigree, the circle represents which sex? a) male b) female 6) Which letters represent a carrier? a) A b) B c) C d) D e) E f) F 7) Which letters represent an individual having the trait? a) A b) B c) C d) D e) E f) F 8) What are some examples of environmental factors that can influence gene expression ? a) temperature b) ph c) nondisjunction d) nutrition/diet e) exposure to chemicals/pollutants f) monosomy

Pedigrees

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