In a cross between AABB and aabb,what is the | vedclass

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(D) In a dihybrid cross between $AABB$ and $aabb$,the $F_1$ generation produces $AaBb$ individuals.When $F_1$ individuals $(AaBb)$ are self-crossed to

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$4$

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(D) In a dihybrid cross between $AABB$ and $aabb$,the $F_1$ generation produces $AaBb$ individuals.When $F_1$ individuals $(AaBb)$ are self-crossed to produce the $F_2$ generation,the phenotypic ratio is $9:3:3:1$.The genotypic ratio for the $F_2$ generation in a dihybrid cross is $1:2:1:2:4:2:1:2:1$.Specifically,the genotype $AaBb$ is a double heterozygote.In the Punnett square of a dihybrid cross,there are $16$ total combinations.The genotype $AaBb$ appears $4$ times out of $16$.Therefore,the probability of obtaining $AaBb$ is $4/16$ or $1/4$.

In a cross between $AABB$ and $aabb$,what is the probability of obtaining $AaBb$ in the $F_2$ generation (in $/16$)?

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