Question

tri hybrid cross with eg​

Answer 1

TRIHYBRID CROSS - DEFINITION

It is the cross between the two individuals of a species for studying inheritance of three pairs of factors or alleles belonging to three different genes.

example

Trihybrid Cross (three genes)

ABD

ABd

AbD

Abd

aBD

aBd

abD

abd

ABD

AABBDD

AABBDd

AABbDD

AABbDd

AaBBDD

AaBBDd

AaBbDD

AaBbDd

ABd

AABBDd

AABBdd

AABbDd

AABbdd

AaBBDd

AaBBdd

AaBbDd

AaBbdd

AbD

AABbDD

AABbDd

AAbbDD

AAbbDd

AaBbDD

AaBbDd

AabbDD

AabbDd

Abd

AABbDd

AABbdd

AAbbDd

AAbbdd

AaBbDd

AaBbdd

AabbDd

Aabbdd

aBD

AaBBDD

AaBBDd

AaBbDD

AaBbDd

aaBBDD

aaBBDd

aaBbDD

aaBbDd

aBd

AaBBDd

AaBBdd

AaBbDd

AaBbdd

aaBBDd

aaBBdd

aaBbDd

aaBbdd

abD

AaBbDD

AaBbDd

AabbDD

AabbDd

aaBbDD

aaBbDd

aabbDD

aabbDd

abd

AaBbDd

AaBbdd

AabbDd

Aabbdd

aaBbDd

aaBbdd

aabbDd

aabbdd

Phenotypic Ratio

27

9

9

9

3

3

3

1