Answer:
For the first part, the correct option is C
"methylation of the DNA is maintained because methylation enzymes act at DNA sites where one strand is already methylated and thus correctly methylates daughter strands after replication."
DNA methylation is an important process that maintains which genes will be 'on' or 'off'. Generally the methylated DNA regions are turns off the gene as it blocks transcription. One example of DNA methylation is the inactivation of the X-chromosome in females.
For the second part, the correct option is D
"Genetic females would become males."
The exon 2 region in transformer (tra) protein is found only in female flies and so will have no effect on male flies. It is responsible for somatic sex determination in female flies. A mutation in this protein would result in a male fly who is sterile, that is, one who cannot reproduce.
Hope that answers the question, have a great day!
