inheritance of labrador retriever coat color

MARLEY AND ME

LAB POPULARITY

• "A dog has no use for fancy cars or big homes or designer clothes. Status symbol means nothing to him. A waterlogged stick will do just fine. A dog judges others not by their color or creed or class but by who they are inside. A dog doesn't care if you are rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his. It was really quite simple, and yet we humans, so much wiser and more sophisticated, have always had trouble figuring out what really counts and what does not.

MY DOG’S MAX’S MOMMA “DIXIE”

MY DOG’S MAX’S POPPA “PETE”

BLACK OR CHOCOLATESimple Dominance

Black (BB or Bb)

Chocolate (bb)

T

BLACK OR CHOCOLATESimple Dominance BBxbb

B Bb Bb Bbb Bb Bb

T

BLACK OR CHOCOLATESimple Dominance BbxBb

B bB BB Bbb Bb bb

T

YELLOW ?An Epistatic Gene

E_ = Coat color ON

Black or Chocolate

ee = Coat color OFF

YellowP

YELLOW ?Cross of Ee x Ee

E e

E EE Eee Ee ee

P

LAB GENOTYPES

Black Lab?

Chocolate Lab?

Yellow Lab?

P

B_E_

bbE_

_ _ee

Combined genes dihybrid

B E

be BbEe

Cross of BBEE x bbee

T

The DihybridCross of BbEe x BbEe

BE Be bE be

BE

Be

bE

beT

The DihybridCross of BbEe x BbEe

BE Be bE be

BE BBEE BBEe BbEE BbEe

Be BBEe BbEe

bE BbEE BbEe

be BbEeT

The DihybridCross of BbEe x BbEe

BE Be bE be

BE

Be

bE bbEE bbEe

be bbEeT

The DihybridCross of BbEe x BbEe

BE Be bE be

BE

Be BBee Bbee

bE

be Bbee bbeeT

The DihybridCross of BbEe x BbEe

BE Be bE be

BE BBEE BBEe BbEE BbEe

Be BBEe BBee BbEe Bbee

bE BbEE BbEe bbEE bbEe

be BbEe Bbee bbEe bbeeT

A RATIO VARIATIONCross of BbEe x BbEe

9 BLACK LABS

4 YELLOW LABS

3 CHOCOLATE LABST

START HERE TODAY

What is the genotype of a black lab whose father was a chocolate.

What is the genotype of a yellow lab whose mother was a chocolate?

What is the genotype of a black lab whose mother was a chocolate lab and whose father was a yellow lab.

What is the genotype of a yellow lab that has been known to have chocolate pups?

Mate a female black lab whose father was a chocolate lab with a yellow lab whose mother was a pure homozygous black lab

Mate a female black lab whose father was a chocolate lab with a yellow lab whose mother was a pure homozygous black lab

BbE_ x B_ee

Mate a female black lab whose father was a chocolate lab with a yellow lab whose mother was a black lab

BbE_ x B_ee

BE bE B_ b_

Be BBEe BbEe BBe_ Bbe_

_e B_Ee b_Ee B_e_ b_e_

        1. Donnybrooks Homeboy

      1. Leeser's Long Range Sniper Black GENOTYPE

      Black GENOTYPE: 2. Black Lace

    1. Big River Alex The First   Black GENOTYPE:

    Black   3. Nimbar's River's N Valleys

      2. Grinde's Samantha Black GENOTYPE:

      Black GENOTYPE 4. Nimbars Valley Ying-Yang

  1. Black Bailey Of Big River     Black GENOTYPE:

  Black GENOTYPE:     5. Duke Of Vesper

      3. Viper Of Plum Hollow Black GENOTYPE

      Yellow GENOTYPES 6. Little Duchess Of Godfrey

    2. Tiffany Hope Jansen   Yellow GENOTYPE:

    Black GENOTYPE   7. Vaassen's Duke

      4. Josie Lee's Gerlich Black GENOTYES

      Black GENOTYES 8. Lange's Maggie

1. Schulteland's Dixie       Black GENOTYPE

Black GENOTYPE:       9. Dutch's Little Grizzley Boy

      5. Big Boy Trooper Chocolate GENOTYPE:

      Chocolate GENOTYPES 10. Five Seasons Corky

    3. Sam Best Chance   Chocolate GENOTYPE:

    Chocolate GENOTYPE:   11. Buffalo Bill VI

      6. Buffalo Sady Cinder Chocolate GENOTYPE

      Chocolate GENOTYPE: 12. Contessa Loo Cinder

  2. Lucky's Little Ace     Black GENOTYPE:

  Chocolate GENOTYPE:     13. Rovin Cody Brown MH

      7. River Valley's Scooter Chocolate GENOTYPE:

      Chocolate GENOTYPES 14. Weberpal's Brown Bullet

    4. Princess Rose Milhirsch   Chocolate Genotypes

    Chocolate GENOTYPE:   15. Yaphire Duke Of Smpter

      8. Hoofbeat's Sweet Cinders Chocolate GENOTYPE:

      Black GENOTYPE: 16. Lady Elizabeth XXXII

        Black GENOTYPE:

        1. Hares Chocolate Chip      1. Maxwell Mousse Chocolate GENOTYPE:

      Chocolate GENOTYPE: 2. Hershi Choco Terrill

    1. Hershies Mocco Delight   Chocolate GENOTYPE:

    Chocolate GENOTYPE:   3. Bo-Jo's Chocolate      2. Maggie Sue Kiefer Chocolate GENOTYPE:

      Chocolate GENOTYPE: 4. Tosha Marley

  1. J.R.     Chocolate GENOTYPE:

  Chocolate GENOTYPE:     5. Amos My Man

      3. Berners Handy Dan Black GENOTYPE:

      Chocolate GENOTYPE: 6. Berners Burnt Snow

    2. Gussies Dandy Lucy   Yellow GENOTYPE:    Chocolate GENOTYPE:   7. Mettlands Brown       4. Grizzley's Brown Chocolate GENOTYPE:

      Chocolate GENOTYPE: 8. Lucy's Mischief

1. Murphy's Pete       Yellow GENOTYPE:

Chocolate GENOTYPE       9. Paul Copper

      5. Jake's Bronze Yellow GENOTYPE:      Yellow GENOTYPE: 10. Paul's Penny    3. R Jacob Bettin   Yellow GENOTYPE:    Black GENOTYPE:   11. My Boy Roy      6. Mi Ginger Rogers Chocolate GENOTYPE:

      Chocolate GENOTYPE: 12. Tutie

  2. C Holly Peterson     Chocolate GENOTYPE:  Black GENOTYPE:     13. Chaz Bobby      7. Willow Creek's Chocolate GENOTYPE:

      Chocolate GENOTYPE: 14. Jeana Marie

    4. Ozark MTAbbycadabby   Chocolate GENOTYPE:

    Black GENOTYPE:   15. Niko Man       8. Willow Creek's Ink Chocolate GENOTYPE:      Black GENOTYPE: 16. Everett's Winnie        Yellow GENOTYPE:

PETE X DIXIEbbE_ x BbEE

bE b_

BE BbEE BbE_

bE bbEE bbE_