Cow bred to produce low-lactose milk

Cow bred to produce low-lactose milk

Assessment

Interactive Video

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Science, Engineering, Biology

11th Grade - University

Hard

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.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

50%

70%

100%

90%

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Archaea

Bacteria

Fungi

Viruses

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

CRISPR

Somatic Cell Nuclear Transfer

Gene Splicing

Dolly the Sheep Cloning

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many calves were born with the low lactose gene?

Four

Three

Two

One

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When is the surviving calf expected to start producing milk?

In four years

In three years

In two years

In one year