Converse of object

• produce: In some cases, children are born without the ability to produce lactase.

• call: In order for lactose to be digested, the body produces an enzyme called lactase.

• immobilize: In this activity, students immobilize the lactase in calcium alginate beads held within a small column, over which the milk is passed.

Adjective modifier

• less: In humans, the body produces less lactase after the age of two.

Modifies a noun

• deficiency: Transient relative lactase deficiency in younger infants may be a cause of some cases of infant colic.

• persistence: The environmental changes that led to a selection for lactase persistence especially in Northwestern Europeans is my main interest.

• enzyme: There are two types of deficiencies of lactase enzyme: the primary deficiency which is a permanent state.

• activity: The gradual loss of lactase activity after weaning is actually the normal process in all mammals - humans are no exception.

Noun used with modifier

• enzyme: Reactions to lactose are due to a deficiency of the enzyme lactase, which the body needs in order to digest lactose.