Explain dihybrid cross

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Explain dihybrid cross

Posted by Kavitha Ravi 8 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Geeta Geeta 8 years, 3 months ago

Dihybrid cross is a cross between two different lines that differ in two observed traits. In this two traits are involved which has two different alleles The dihybrid cross is easy to visualize using 4x4. Each pair show independent segregation. If f1 generation produces four identical offspring, the second generation which occurs by crossing the members of F1 shows Phenotypic ratio 9:3:3:1 (for cross refer ncert textbook) where

9 represents the proportion of individuals displaying both dominant traits
3 represents individuals displaying first dominant trait and second recessive trait
second 3 represents those displaying the first recessive trait and second dominant trait
1 represents the homozygous displaying both recessive traits

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Posted by Pandey Ji 2 months, 4 weeks ago

CBSE > Class 10 > Science