What happens to the genes when two chromosomes "embrace" ?

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.