1. 4-7 Question of the Day Remember the following for pea pod color G = green and g = yellow You cross a yellow w/ a green and get 101 greens + 0 yellows, what genotype was the P generation green (GG or Gg)? EXPLAIN!

2. Monohybrid Cross Practice T = tallt = short T = tallt = short Cross the following true breeding plants: tall X short. Cross the following true breeding plants: tall X short. What is the genotype ratio? What is the genotype ratio? What is the phenotype ratio? What is the phenotype ratio? TT X tt T t t Tt

3. Review a. Complete dominance b. Incomplete dominance c. Codominance If a true breeding red flower crossed with a true breeding blue flower to produce all purple flowers these flowers are an example of… If a true breeding red flower crossed with a true breeding blue flower to produce all purple flowers these flowers are an example of…

4. 4-8 Question of the Day For pea plants: Purple flower color is dominant over white flower color You cross a purple w/ a white if you get a white baby plant, you know the purple parent plant genotype was what? EXPLAIN! P = purple allele and p = white allele

5. Question of the Day White parent = Purple parent = pp PP or P p P ? p p Pp ?p

6. 4-8 Dog Activity TODAY

7. Question of the Day 1. If gold = dominant + white = recessive + you cross 2 white fish, what will you get? 2. What can you tell about the genotype of a true-breeding plant? Explain. 4-11

8. Review Gg X GG G g G G GG Gg gold = dominant + white = recessive Cross a heterozygous gold fish with a homozygous gold fish. What are the phenotypic ratios? What are the genotypic ratios? All gold ½ GG and ½ Gg

9. Review a. Complete dominance b. Incomplete dominance c. Codominance If a true breeding red flower crossed with a true breeding blue flower to produce red flowers with blue spots these flowers are an example of… If a true breeding red flower crossed with a true breeding blue flower to produce red flowers with blue spots these flowers are an example of…

10. 4-8 Yesterday’s Packet  HAND IT IN!!! Dog Activity  hand in when finished – due Monday 4-11 Assignment My.hrw.com Chapter 9 Username = dhe5n Password = p5e8n

11. 4-11 ANNOUNCEMENT Quest (larger than a quiz, smaller than a test) Unit 7 will be on Thursday 4-14 – goal setting applies

12. Dihybrid Cross Dihybrid Cross – Dihybrid Cross – when you make a cross for two traits when you make a cross for two traits Example: Example: Traits = pod color AND plant height Traits = pod color AND plant height Cross: Tall, Yellow Plant x Short, Green Plant Cross: Tall, Yellow Plant x Short, Green Plant

13. Dihybrid Cross Dihybrid Cross – Dihybrid Cross – when you make a cross for two traits when you make a cross for two traits Example: Example: Traits = Traits = Cross: Cross:

16. Dihybrid Cross Practice T = tallt = shortW = whitew = purple Cross a heterozygous tall, white plant with another heterozygous tall, white plant. Cross a heterozygous tall, white plant with another heterozygous tall, white plant. What is the phenotypic ratio? _______________ What is the phenotypic ratio? _______________ What is the genotypic ratio? ________________ What is the genotypic ratio? ________________ TtWw X TtWw TWTwtWtw TW Tw tW tw TTWWTTWWTTWwTTWwTtWWTtWWTtWwTtWw TTWwTTwwTTwwTtWwTtwwTtww TtWWTtWwttWWttWWttWwttWw TtWwTtWwTtwwttWwttwwttww

17. Dihybrid Cross Practice T = tallt = shortW = whitew = purple Cross a short, purple plant with a homozygous tall, heterozygous white plant Cross a short, purple plant with a homozygous tall, heterozygous white plant What is the phenotypic ratio? _______________ What is the phenotypic ratio? _______________ ttww X TTWw tw TW Tw TW Tw TtWwTtWwTtWwTtWwTtWwTtWwTtWwTtWw TtwwTtwwTtwwTtwwTtwwTtwwTtwwTtww TtWwTtWwTtWwTtWwTtWwTtWwTtWwTtWw TtwwTtwwTtwwTtwwTtwwTtwwTtwwTtww

18. Dihybrid Cross Practice T = tallt = shortW = whitew = purple Cross a short, purple plant with a homozygous tall, homozygous white plant Cross a short, purple plant with a homozygous tall, homozygous white plant What is the phenotypic ratio? _______________ What is the phenotypic ratio? _______________ ttww X TTWW