The B locus is the most basic color locus. It controls whether the rabbit has a black or chocolate base color. A rabbit can be either B_ or bb.
B_ is black-based. Black can be either BB or Bb. It is the most dominant on the B locus. Varieties recognized in Holland Lops that are B_ at the B locus are:
~Black
~Blue
~Chinchilla
~Squirrel
~Chestnut Agouti
~Opal
~Black/Blue Pointed White
~Black/Blue GT/ST Steel
~Black/Blue Otter
~Orange
~Frosty
~Red
~Cream
~Black/Blue Tricolor
~All Shaded varieties except for Chocolate Tortoise and Lilac Tortoise
bb is chocolate. Chocolate can ONLY be bb. Chocolate is recessive to black. Varieties recognized in Holland Lops that are bb at the B locus are:
~Chocolate
~Lilac
~Chocolate Agouti
~Chocolate Chinchilla
~Lynx
~Chocolate/Lilac Pointed White
~Chocolate/Lilac GT/ST Steel
~Chocolate/Lilac Otter
~Chocolate/Lilac Tricolor
~Chocolate/Lilac Tortoise
B_ is black-based. Black can be either BB or Bb. It is the most dominant on the B locus. Varieties recognized in Holland Lops that are B_ at the B locus are:
~Black
~Blue
~Chinchilla
~Squirrel
~Chestnut Agouti
~Opal
~Black/Blue Pointed White
~Black/Blue GT/ST Steel
~Black/Blue Otter
~Orange
~Frosty
~Red
~Cream
~Black/Blue Tricolor
~All Shaded varieties except for Chocolate Tortoise and Lilac Tortoise
bb is chocolate. Chocolate can ONLY be bb. Chocolate is recessive to black. Varieties recognized in Holland Lops that are bb at the B locus are:
~Chocolate
~Lilac
~Chocolate Agouti
~Chocolate Chinchilla
~Lynx
~Chocolate/Lilac Pointed White
~Chocolate/Lilac GT/ST Steel
~Chocolate/Lilac Otter
~Chocolate/Lilac Tricolor
~Chocolate/Lilac Tortoise