1. SCIENCE
Genetics Review
Good Luck!

2. #1 What do we call the passing of traits from parents to offspring?
Probability
Recessive
Heredity

3. #2 Examples of alleles are _________?
round and wrinkled for seed shape
Male and female
Blue eyes and brown hair
,,,

4. #3 Chromosomes contain ____.
anthers
many genes
proteins

5. #4 If you cross a Bb with a bb, what are the possible genotypes
#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

6. #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

7. #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

8. #7 What does Heterozygous means?
Alleles are the Same
Alleles are Different

9. #8 Who is known as the “Father of Genetics”?
Mendel
Punnett
Newton
“FATHER OF GENETICS”

10. #9 What name is given to the set of instructions for a characteristic?
Gene
DNA
Chromosome

11. #10 Homozygous means?
Alleles are the Same
Alleles are Different

12. #11 Meiosis results in the production of _______?
Sex cells
Cells with the half the number of chromosomes
All of the above

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

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

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

16. #15 All of an individual’s alleles are known as their _________?
Pedigree
Phenotype
Genotype

17. #16 What are chromosomes?
The same thing as Alleles
Organized structures of DNA

18. #17 How many sets of instructions does an individual have for each trait?3 1 2

19. 1 purple:3 white 3 purple:1 white 4 purple:0white 2 purple:2 white
#18 a) Complete this punnett square. Which of the following best describes your results?
1 purple:3 white
4 purple:0white
3 purple:1 white
2 purple:2 white