How many genotypes are possible from a cross between the parent $R R$ and $r r$ ?

Four

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One

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Three

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Two

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Solution

The correct option is D One
Crossing between RR and rr will give one genotype that is Rr.
So, the correct option is B.

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How many genotypes are possible from a cross between the parent RR and rr?

The correct option is D OneCrossing between RR and rr will give one genotype that is Rr.So, the correct option is B.

How many genotypes are possible from a cross between the parent $R R$ and $r r$ ?

The correct option is D One
Crossing between RR and rr will give one genotype that is Rr.
So, the correct option is B.