Explain how eukaryotic genes can be coordinately expressed. describe an example of coordinate gene expression in eukaryotes.

Associated with specific regulatory DNA sequences or enhancers that are recognized by a single type of transcription factor that activates or represses a group of genes in synchrony  

heat shock response - series of proteins that help stabilize and repair  

Steroid hormone action - steroids activate protein receptors which activate genes Cellular differentiation the genes produce particular sets of proteins which go on and off

i think it is dna, i'm not totally sure but i think it might be.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.