Lactose is a disaccharide molecule, which means it is formed
by two different simple sugar molecules bonded together; those molecules are
glucose and galactose. The body can extract energy from lactose, so it uses an
enzyme called lactase to break lactose into two monosaccharides: glucose and
galactose.
We can conclude that after lactase breaks down a sugar in
milk, the monosaccharides formed in that reaction are glucose and galactose.
If gametes were produced instead by mitosis each gamete would be diploid not haploid. During fertilization of diploid gametes, the zygote would become 4n=92. With each new generation the number of chromosomes would double.
