As the newcomers to the Arctis Planetary System, this chapter might be the most hypothetical. Some of it will be based on what we know from the World Ship breeding with others that they've crossed paths with on their journey.

When we list equations it's Father+Mother=Child
Human+Fontian means a man from Earth and a woman from Fontis
Fontian+Human means a man from Fontis and a woman from Earth

For Fontians, hair is the dominant gene. This means that the child will have platinum blond hair. When a Fontian breeds with a species that also has a dominant hair gene, it normally means there is a blending of the colours of the parents.

Another feature to Fontian genetics is that sons take after their father and daughters take after their mother. So it will depend on who the parent is and what the offspring is as to what the child looks like. In general offspring of a Fontian male will follow their hair colour and offspring of a Fontian female will add a platinum shine to the hair colour of her male partner.

Human

Human males have a dominant gene to determine gender. Human females have the inferior gene to determine gender. This means that if a human male fathers a child, it has a higher chance of being born male. If a human female mothers a child, it has the same gender ratios that Fontis has.

Human+Fontian=9 boys for every girl, platinum blond hair, skin colour affected by the father
Fontian+the next generation=
Fontian+the third generation=

Fontian+Human=normal gender ratio, platinum blond hair, skin colour affected by the mother
The next generation+Fontian=
The third generation+Fontian=

Glace

For Glacians, hair colour is the dominant gene. The Glace x-chromosome is stronger and the Fontis Y-chromosome is stronger. So daughters will take after their Glacian mothers and sons will take after their Fontian fathers.

Fontian+Glacian=1 boy to every 2 girls. Daughters will take after their mother and be almost fully Glacian with a platinum shine to their blue hair. Sons will take after their father and be almost fully Fontian with a blue tint to their platinum blond hair, sometimes pastel blue hair.
Glacian+Fontian=girl with a platinum shine to her glacier blue hair.
Diet: Any child will need to be able to get nutrition on either planet. Meat is the staple of the diet with the ability to digest cooked plants. The child's saliva can dissolve rocks to get minerals.

Fontian+the next generation=2 boys for every 3 girls. Daughters will have platinum blue hair. Sons will have milder tint to their platinum blond hair, or maybe blue streaks in their blond hair.
The next generation+Fontian=normal gender ratio. Daughters will have milder tint to their platinum blond hair, or maybe blue streaks in their blond hair. Sons will have platinum blue hair
Diet: Their diet skews more to a Fontian diet with the ability to digest all cooked plants and some raw plants. The child might have the habit of licking stones.

Fontian+the third generation=normal gender ratio with platinum blond hair
The third generation+Fontian=normal gender ratio with platinum blond hair
Diet: Still loves meat but can digest all plants whether cooked or raw and gets minerals from salt.

Neanderthal

For Neanderthals, the dominant genes are hair colour and noses. Neaderthals have strong facial feature genes (like foreheads, noses, and lips). Their dark hair mixes with the Fontian platinum blond hair to create grey haired babies.

Fontian+Neanderthal=grey hair, Neanderthal nose
Fontian+the next generation = light grey hair, slightly prominent brows
Fontian+the third generation=platinum blond hair, shorter height, prominent brows

The next generation+Fontian=light black hair,
The third generation+Fontian=

Darsite

For Darsites, the eyes are the important feature for their survival. It's the dominant gene. The next generation will have the bottom liner and have a greater chance of having a pale eye colour.

Fontian+Darsite=either gender with black lips, blue liner under the eyes and pale eye colour. Hair will be platinum blond
Fontian+the next generation=dark red lips, pale blue liner under the eyes, darker blue eye colour
Fontian+the third generation=red lips, no liner under the eyes, any eye colour

The next generation+Fontian=dark red lips, blue liner under the eyes, darker blue eye colour, blond hair
The third generation+Fontian=dark red lips, no liner under the eyes, blue eyes, blond streaks in mother's hair colour