2. SCIENCE Genetics Review Good Luck!

3. #1 What do we call the passing of traits from parents to offspring? Probability Recessive Heredity

4. #2 What do we call two forms of the same gene? Alleles Chromosomes Sex cells,,,

5. #3 Genes are found on ____. Alleles Chromosomes Proteins

6. #4 If you cross a BB with a bb, what are the possible genotypes? (make a Punnett square) All BB All bb The Great Compromise 50% BB and 50% bb All Bb

7. #5 For this Punnett square, what is the phenotype of the offspring? (If B = black and b = brown) 1/2black,1/2 brown All Black All Brown

8. #6 A normal human sex cell has how many chromosomes ? 46 22 23

9. #7 What does Heterogenous means? Same Different

10. #8 Who is known as the “Father of Genetics”? Mendel Punnett Newton “FATHER OF GENETICS”

11. #9 What name is given to the set of instructions for a characteristic? Gene DNA Chromosome

12. #10 Homozygous means? Same Different

13. #11 Humans produce sex cells through a process called ? Mitosis Binary fission Meiosis

14. 12. In the pedigree above, how many females are shown ? 5 8 9

15. 13. In the pedigree above, how many females have THE disease ? 5 8 9

16. 14. In the pedigree above, how many children do parents 1 and 2 have ? 4 3 6 12

17. #15 The inherited combination of alleles is known as the offspring’s ? Pedigree Phenotype Genotype

18. #16 What are chromosomes? The same thing as Alleles Organized structures of DNA

19. #17 How many sets of instructions for each characteristic do offspring receive from EACH parent? 321321

20. #18 a) Complete this punnett square. Which of the following best describes your results? 3 purple:1 white 2 purple:2 white 1 purple:3 white 4 purple:0white