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7. Which phenotypic ratio would you expect following a monohybrid cross? 1:1 2:1 3:1 1:1:1 1:1:1:1 9:3:3:1 8. Which phenotypi
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Answer #1

Answer:

7). 3:1

Explanation:

AA x aa ---Parents

Aa --------F1

Aa x Aa ----Parents

A

a

A

AA

Aa

a

Aa

aa

Monohybrid phenotypic ratio : 3:1 = Dominant : recessive

8). 1:1:1:1

Explanation:

AaBb x aabb ---Testcross

ab

AB

AaBb

Ab

Aabb

aB

aaBb

ab

aabb

Dihybrid testcross ratio = 1:1:1:1

9). 1:1

Explanation: Monohybrid testcross ratio = 1:1

Aa x aa ---Parents

a

A

Aa

a

aa

Aa : aa = 1:1

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