Genetics Review Packet (the 4 pages of punnett squares)

1. Dominant - The gene that always shows, usually a capital letter
2. Recessive - The gene that is present only when the dominant gene is not present, usually a lower case letter
3. 1/4 (triangle) 1:3 (circle) 75% (square)
4. a. gene b. homozygous c. punnett square d. genotype e. phenotype f. ratio g. probability
5. a. heterozygous b. heterozygous c. homozygous dominant d. heterozygous e. homozygous recessive f. homozygous recessive g. homozygous dominant h. heterozygous
6. 25% - BB 50% - Bb 25% - bb
7. 0% - BB; 50% - Bb; 50% - bb
8. 1/4 BbEe (Black hair/ brown eyes); 1/4 Bbee (Black hair/ blue eyes); 1/4 bbEe (blonde hair/brown eyes); bbee (blonde hair/blue eyes)
9. Parent 1 - rr and Parent 2 - Rr; (rr x Rr) 50% White, 50% Pink
10. Males (XY); Females (XX)
11. Cross XY and XX
12. a. 100% Type O; b. 100% Type AB; c. 50% Type A, 50% Type B
13. a. 2/2 girls with normal vision, 1/2 normal boys, 1/2 boys colorblind; b. 2/2 girls are normal, 2/2 boys are colorblind; c. 2/2 girls are normal, 2/2 boys are normal