Question

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Answer 1

hey mate..

Explanation:

this is dihybride crossing..

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phenotypic ratio is 9:3:3:1

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9—dogs with barking traits and erect ear....

3—dogs are barking traits and dropping ears...

3—dogs are silent traits and erect ears...

1—dog is silent trait and dropping ear....

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Answer 2

Explanation:

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Different types of phenotypes are :-

» Barkimg with errect ears

» Barking with droppinh ears

» Silent with errect ears

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(1). What is the expected phenotypic ratio of the offspring when dogs , Heterozygous for both the traits are crossed ?

» phynotypic ratio will be -9:3:3:1

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(2). What are different phenotypes observed ?

» Refer to the image

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(3). What is the type of cross known as ?

» Dihybrid cross

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