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Tuesday, January 23, 2023 - Dihybrid Cross Notes

Dihybrid Cross:

  • a genetic cross of possible outcomes of two traits

  • example:

  • fur color of mice

    • two options:

      • black - dominant - B

      • white - recessive - b

  • coat texture of mice

    • two options:

      • rough - dominant - R

      • smooth - recessive - r

  • parents:

    • parent 1 - heterozygous - BbRr

    • parent 2 - heterozygous - BbRr

XXXXXXXX

BR

Br

bR

br

BR

BBRR

BBRr

BbRR

BbRr

br

BbRr

Bbrr

bbRr

bbrr

Br

BBRr

BBrr

BbRr

Bbrr

bR

BbRR

BbRr

bbRR

bbRr

AK

Tuesday, January 23, 2023 - Dihybrid Cross Notes

Dihybrid Cross:

  • a genetic cross of possible outcomes of two traits

  • example:

  • fur color of mice

    • two options:

      • black - dominant - B

      • white - recessive - b

  • coat texture of mice

    • two options:

      • rough - dominant - R

      • smooth - recessive - r

  • parents:

    • parent 1 - heterozygous - BbRr

    • parent 2 - heterozygous - BbRr

XXXXXXXX

BR

Br

bR

br

BR

BBRR

BBRr

BbRR

BbRr

br

BbRr

Bbrr

bbRr

bbrr

Br

BBRr

BBrr

BbRr

Bbrr

bR

BbRR

BbRr

bbRR

bbRr

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