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 Examples of alleles are _________? round and wrinkled for seed shape Male and female Blue eyes and brown hair,,,

5. #3 Chromosomes contain ____. anthers many genes 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 All Bb 50% Bb and 50% bb

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

8. #6 A normal human sex cell has how many chromosomes ? The same number of chromosomes as every other cell Twice the number of chromosomes as every other cell Half the number of chromosomes as every other cell

9. #7 What does Heterozygous means? Alleles are the Same Alleles are 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? Alleles are the Same Alleles are Different

13. #11 Meiosis results in the production of _______? Sex cells Cells with the half the number of chromosomes All of the above

14. 12. What symbol is used to represent males in a pedigree ? circle diamond square

15. 13. In the pedigree above, how do you know who has the trait ? They are filled in They are all male They are all female

16. 14. In the pedigree above, how many siblings does individual 1 have? 5 2 4 1

17. #15 All of an individual’s alleles are known as their _________ ? Pedigree Phenotype Genotype

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

19. #17 How many sets of instructions does an individual have for each trait? 312312

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