Cow bred to produce low-lactose milk

The video discusses lactose intolerance, highlighting that up to 90% of people in parts of Africa and Asia cannot digest milk. Scientists have attempted to create low lactose cows by injecting genes from archaea into cow embryos, using cloning techniques similar to those used for Dolly the sheep. Out of 14 embryos, five calves were born, with three carrying the low lactose gene. Two calves died shortly after birth, and the surviving calf is expected to produce milk in two years.

What percentage of the population in parts of Africa and Asia is unable to digest milk?

• 50%

• 70%

• 100%

• 90%

What organisms were the genes taken from to create the low lactose cow?

• Archaea

• Bacteria

• Fungi

• Viruses

Which cloning technique was used in the creation of the low lactose cow?

• CRISPR

• Somatic Cell Nuclear Transfer

• Gene Splicing

• Dolly the Sheep Cloning

How many calves were born with the low lactose gene?

• Four

• Three

• Two

• One

When is the surviving calf expected to start producing milk?

• In four years

• In three years

• In two years

• In one year