What is the relationship between lactase and lactose?
Lactase is the enzyme that breaks down the sugars in lactose.
100
The gene which controls your lactase production.
What is the LCT gene?
100
where lactase persistence originated. (3 answers)
Where is Western Europe, Sub-Saharan Africa and the Middle East?
100
The closest planet to the sun in the Milky Way.
What is Mercury?
200
What is natural selection?
When organisms better adapt to their environment and tend to survive due to a certain trait which gives them an advantage. (Eventually the trait gets spread throughout the population because the organisms without the trait are no longer in the gene pool.)
200
The enzyme which makes it easier for your body to process lactose.
What is lactase?
200
TRUE or FALSE: the majority of humans (all around the globe) are lactose persistent.
FALSE
200
Spell your Biology Teacher's full name correctly.
Gillian Ashenfelter
300
What caused lactase persistence?
A random gene mutation which, by natural selection, started spreading throughout the population.
300
The place where lactase is produced.
Where is the small intestine?
300
Why does lactase persistence show evolution in humans?
Because a random mutation became a widespread trait, through natural selection, as it gave some humans an advantage over others because they could continue to consume lactose.