Question

George and Henry are identical twins. George was raised by his mother in one home, and Henry was raised by his father in another home. Based on what is known about the relationship of genes and environment, one can correctly conclude that:

Answer 1

Twins may be defined as the two offspring produced by the same pregnancy. The twins can be monozygotic or dizygotic depending upon whether they have developed from the same or different egg.

Both the Henry and George are identical twins. They have been raised in the different environments. This will affect their phenotype as phenotype expression depends on genotype as well as on environment. Both have different genotypes although they share the same genotype.