Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________,...
-
Upload
bartholomew-lawrence-fletcher -
Category
Documents
-
view
221 -
download
0
Transcript of Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________,...
![Page 1: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/1.jpg)
![Page 2: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/2.jpg)
Create a gene and a corresponding allele on your whiteboardGene: _____________Allele: ________, _________
Alleles (variations of trait)-Purple, blue, white-curly, straight, wavy-Short, tall
Gene (trait)-Flower Color-Hair type-Plant Height
![Page 3: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/3.jpg)
Phenotype Physical appearance terms ex. Tall, short, brown hair etc.
Genotype Genes in cell, written with letters that
represent the genes (ex: “T” for tall, or “t” for short)
![Page 4: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/4.jpg)
• Punnett Squares: diagram that determines the probable distribution of inherited traits in the offspring.
• UPPERCASE letters are used to represent dominant genes (traits).
• lowercase letters are used to represent recessive genes (traits).
![Page 5: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/5.jpg)
Homozygous: Both alleles are the same. Either both capitols (dominant) or both lower-cased (recessive)Example:
•BB (homozygous dominant) •bb (homozygous recessive)
Heterozygous: Both alleles are different. One capital letter and one lower-cased letter. Example:Bb
![Page 6: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/6.jpg)
![Page 7: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/7.jpg)
1. RR=
2. Ll=
3. Yy
4. Ee
![Page 8: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/8.jpg)
1. A fish is homozygous recessive for fin color
2. A cat is heterozygous for tail length.
3. A turtle is homozygous dominant for shell color.
4. A polar bear is homozygous recessive for claw length.
![Page 9: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/9.jpg)
Sample Problem• T represents the gene for TALL in pea plants• t represents the gene for short in pea plants
So:TT & Tt both result in a TALL plant, because T is dominant over t. t is recessive. What will tt result in?
Remember there are two genes for every trait!
![Page 10: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/10.jpg)
![Page 11: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/11.jpg)
Write the 3 possible genotypes and phenotypes for the following:
Green eyes are dominant to blue eyes
(use the first letter of the dominant trait)
GG=Gg=gg=
![Page 12: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/12.jpg)
Write the 3 possible genotypes and phenotypes for the following:
Curled toes are dominant to straight toes
(use the first letter of the dominant trait)
CC= Cc= Cc=
![Page 13: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/13.jpg)
Let’s cross a homozygous tall plant (TT) with a short plant (tt).Each plant will give only one of its’ two genes to the offspring.
TT x tt
T T t t
![Page 14: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/14.jpg)
T T t t
Each gene (allele) separates from the other so that the offspring get only one gene from each parent for a given trait.
T T t t
TT x t t
![Page 15: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/15.jpg)
Predict the offspring if a tall plant (TT) is crossed (mates) with a short plant (tt)
TT x tt
![Page 16: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/16.jpg)
Tt Tt
Tt t
The genes from one parent go here.
The genes from the other parent go here.
![Page 17: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/17.jpg)
T T
t Tt Tt
t Tt Tt
![Page 18: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/18.jpg)
T T
t Tt Tt
t Tt Tt
If a box receives a capital letter and a lower-cased letter we write the capitol letter first
![Page 19: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/19.jpg)
Possible offspring Genotype =
![Page 20: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/20.jpg)
Possible offspring Genotype = Tt.
![Page 21: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/21.jpg)
Possible offspring Genotype = Tt.What percent of offspring will have the following genotypes:
TT=Tt=tt=
![Page 22: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/22.jpg)
Possible offspring Genotype = Tt.What percent of offspring will have the following genotypes:
TT= 0%Tt= 100%tt= 0%
![Page 23: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/23.jpg)
Possible offspring Genotype = Tt.What percent of offspring will have the following genotypes:
TT= 0%Tt= 100%tt= 0%
Possible offspring phenotype =
![Page 24: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/24.jpg)
Possible offspring Genotype = Tt.What percent of offspring will have the following genotypes:
TT= 0%Tt= 100%tt= 0%
Possible offspring phenotype = tall.
![Page 25: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/25.jpg)
Possible offspring Genotype = Tt.What percent of offspring will have the following genotypes:
TT= 0%Tt= 100%tt= 0%
Possible offspring phenotype = tall.What percent of offspring will have the following phenotypes:
Tall=Short=
![Page 26: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/26.jpg)
Possible offspring Genotype = Tt.What percent of offspring will have the following genotypes:
TT= 0%Tt= 100%tt= 0%
Possible offspring phenotype = tall.What percent of offspring will have the following phenotypes:
Tall= 100%Short= 0%
![Page 27: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/27.jpg)
Black rabbits are dominant to brown. Two heterozygous rabbits have offspring. Predict what percentage of their offspring will be brown.
![Page 28: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/28.jpg)
Black rabbits are dominant to brown. Two heterozygous rabbits have offspring. Predict what percentage of their offspring will be brown.
Step 1: Determine the genotype of parents. Always use the first letter of the dominant trait. ____________x _____________
![Page 29: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/29.jpg)
Black rabbits are dominant to brown. Two heterozygous rabbits have offspring. Predict what percentage of their offspring will be brown.
Step 1: Determine the genotype of parents. Always use the first letter of the dominant trait. ____________x _____________
![Page 30: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/30.jpg)
Step 2: Set up a Punnett Square
![Page 31: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/31.jpg)
Step 2: Set up a Punnett SquareStep 3: Complete Punnett Square
![Page 32: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/32.jpg)
Step 4: Predict offspring phenotype.
![Page 33: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/33.jpg)
Black rabbits are dominant to brown. Two heterozygous rabbits have offspring. Predict what percentage of their offspring will be brown?
![Page 34: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/34.jpg)
![Page 35: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/35.jpg)
Tall plants are dominant to short. Cross two heterozygous pea plants.
1. Determine parent’s genotype and write on whiteboard
Your Turn!!
![Page 36: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/36.jpg)
Set up a punnett square and fill it in.Hold up whiteboard
![Page 37: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/37.jpg)
T t
T TT Tt
t Tt tt
![Page 38: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/38.jpg)
Determine the genotype percentages and write on whiteboard TT= Tt= Tt=
![Page 39: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/39.jpg)
T t
T TT Tt
t Tt tt
Genotype percentage : TT – 25%
![Page 40: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/40.jpg)
T t
T TT Tt
t Tt tt
Genotype percentage: TT – 25%, Tt – 50%
![Page 41: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/41.jpg)
T t
T TT Tt
t Tt tt
Genotype percentage: TT – 25%, Tt – 50%, tt – 25%
![Page 42: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/42.jpg)
Determine the Phenotype percentages and write on whiteboard Tall= Short=
![Page 43: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/43.jpg)
T t
T TT Tt
t Tt tt
Genotype percentage: TT – 25%, Tt – 50%, tt – 25%
Phenotype percentage: Tall – 75%
![Page 44: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/44.jpg)
T t
T TT Tt
t Tt tt
Genotype percentage: TT – 25%, Tt – 50%, tt – 25%
Phenotype percentage: Tall – 75%, short – 25%
![Page 45: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/45.jpg)
Round seeds are dominant to wrinkled seeds.
Rr x rr What percentage of the offspring will be round? _______________
![Page 46: Create a gene and a corresponding allele on your whiteboard Gene: _____________ Allele: ________, _________ Alleles (variations of trait) -Purple, blue,](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649cf65503460f949c5799/html5/thumbnails/46.jpg)
Classwork: Punnett Packet Pages 1-?
Homework: Punnett Packet Pages ?-? (due tomorrow)