Which one of the followoing genotypes is homozygous dominant and which one homozygous recessive in regard to tongue rolling:
Rr, rr, RR.

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Solution

Homozygous dominant – RR
Homozygous recessive - rr

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Standard X Biology

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Which one of the followoing genotypes is homozygous dominant and which one homozygous recessive in regard to tongue rolling: Rr, rr, RR.

Homozygous dominant – RR Homozygous recessive - rr

Which one of the followoing genotypes is homozygous dominant and which one homozygous recessive in regard to tongue rolling:
Rr, rr, RR.

Homozygous dominant – RR
Homozygous recessive - rr