Greg is raising plants that have yellow flowers with the genotype YY. He accidently cross-bred one with a plant having a mutation. What would explain all the plant offspring
having a Yy genotype?
The plant with a mutation has a yy genotype.
The plant with a mutation has a Yy genotype.
The plant with a mutation has a yy phenotype.
The plant with a mutation has a Yy phenotype

In the given case of crossing, the following would explain all the plant offspring having a Yy genotype: The plant with a mutation has a yy genotype.

A genotype is the combination of genes that represents a specific trait that comes from both parents equally. If there are two genes "Y" and "y" where Y represents dominant allele and y represent recessive allele.

In the presence of the dominant allele, expression of the recessive allele is masked by the dominant allele
In the given case, Plant with a yellow flower has a YY genotype crossed with a mutated plant and give rise to offspring with Yy genotype
neither Yy nor YY could be mutated as it has a dominant allele condition which is already known as a normal allele

Y Y

y Yy Yy

Thus, the correct explanation: The plant with a mutation has a yy genotype.

Learn more about phenotype:

https://brainly.com/question/2887149