Milk & Digestion
This sugar is found in milk.
What is, Lactose.
This condition makes it hard to digest milk.
What is, lactose intolerance.
This is the enzyme that digests lactose.
What is, lactase.
This molecule carries genetic instructions.
What is, DNA.
This animal was domesticated for humans to consume milk.
What is, a cow.
This enzyme breaks down lactose.
What is, lactase.
Two examples of lactose intolerance symptoms.
What is, gas and bloating.
Most mammals stop making lactase at this life stage.
What is, the weaning period (childhood).
DNA is organized into these units.
What are, genes.
This type of animal is bred for human use (farm animals).
What are, domesticated animals.
What two molecules does lactose get broken down into?
What is, glucose and galactose.
What developmental stage does lactose intolerance start?
What is, childhood.
Lactase persistence allows adults to digest this.
What is, milk (lactose).
This gene is responsible for producing lactase.
What is, the LCT gene.
What is it called when cows are used for their milk?
What is, dairy farming.
This organ is responsible for the breakdown of lactose.
What is, the small intestine. (Intestines).
True or False: Can lactose intolerance be caused by illness or gut injuries?
True.
Lactase persistence is caused by mutations in this type of DNA region.
What is, the LCT gene.
This type of mutation affects gene regulation, not protein structure.
What is, regulatory mutations.
What is the purpose of lactase in infant mammals (humans)?
What is, to digest breast milk as babies.
Can you get tested for lactose intolerance?
Yes.
Lactase persistence is an example of continued expression of a gene after this stage.
What is, adulthood.
True or False: People are generally lactose intolerant.
True.
If a person has mostly asian genetics, would they be more or less likely to be lactose intolerant?
What is, more likely.