His parents maybe a having the genotypes of GG and Gg. Galactosemia is a dominant allele so whoever gets the dominant allele, that person is positive to the disorder. Having a parent who is dominant homogeneous alleles crossed by a carrier could have a higher probability to have a child who will inherit this gene.
Yes, you can grow plants in just water. when you do grow them in just water there have to be neutrinos added to the water for the plant to thrive. hope this helped let me know if the answer was correct
I think the answer is naturally acquired active immunity..also depends on which disease