4-7 question of the day remember the following for pea pod color g = green and g = yellow you cross...
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![Page 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,](https://reader036.vdocuments.us/reader036/viewer/2022062409/5697c01b1a28abf838ccf691/html5/thumbnails/1.jpg)
4-7Question 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!
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Monohybrid Cross Practice
T = tall t = short Cross the following true breeding plants: tall X
short.
What is the genotype ratio? What is the phenotype ratio?
TT X tt T T
t t
Tt Tt
Tt Tt
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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…
![Page 4: 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,](https://reader036.vdocuments.us/reader036/viewer/2022062409/5697c01b1a28abf838ccf691/html5/thumbnails/4.jpg)
4-8Question 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
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Question of the Day
White parent = Purple parent =
pp PP or Pp
P ?p p
Pp ?p
Pp ?p
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4-8
Dog ActivityTODAY
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Question of the Day1. 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
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Review
Gg X GG
G gG G
GG Gg
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
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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…
![Page 10: 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,](https://reader036.vdocuments.us/reader036/viewer/2022062409/5697c01b1a28abf838ccf691/html5/thumbnails/10.jpg)
4-8Yesterday’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
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4-11ANNOUNCEMENT
Quest (larger than a quiz, smaller than a test) Unit 7 will be on Thursday 4-14 – goal setting applies
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Dihybrid Cross
Dihybrid Cross – when you make a cross for two
traitsExample:
Traits = pod color AND plant height
Cross: Tall, Yellow Plant x Short, Green Plant
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Dihybrid Cross
Dihybrid Cross – when you make a cross for two
traitsExample:
Traits = Cross:
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Dihybrid Cross PracticeT = tall t = short W = white w = purple Cross a heterozygous tall, white plant with
another heterozygous tall, white plant.
What is the phenotypic ratio? _______________ What is the genotypic ratio? ________________
TtWw X TtWwTW Tw tW tw
TWTwtWtw
TTWW TTWw TtWW TtWw
TTWw TTww TtWw Ttww
TtWW TtWw ttWW ttWw
TtWw Ttww ttWw ttww
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Dihybrid Cross PracticeT = tall t = short W = white w = purple Cross a short, purple plant with a homozygous
tall, heterozygous white plant
What is the phenotypic ratio? _______________
ttww X TTWwtw tw tw tw
TWTwTWTw
TtWw TtWw TtWw TtWw
Ttww Ttww Ttww Ttww
TtWw TtWw TtWw TtWw
Ttww Ttww Ttww Ttww
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Dihybrid Cross Practice
T = tall t = short W = white w = purple Cross a short, purple plant with a homozygous
tall, homozygous white plant
What is the phenotypic ratio? _______________
ttww X TTWW
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