AnswersSY2025-26 - 2002070 MJ Comprehensive Science 2 Sem 1 CRAdvances in Genetics

Advances in Genetics — Unit test Answers

0 verified answers1 views
1
Free Preview

Which statements are true about genetic technologies? Check all that apply.All risk factors to the modified organisms are well known.Eating genetically modified organisms is always safe.Genetically engineered crops can be produced at lowered costs.Some genetically engineered crops are resistant to harsh weather.Genetically modified organisms may be harmful to people.

A
All risk factors to the modified organisms are well known.
B
Eating genetically modified organisms is always safe.
C
Genetically engineered crops can be produced at lowered costs.
D
Some genetically engineered crops are resistant to harsh weather.
E
Genetically modified organisms may be harmful to people.
2
Free Preview

Scientists have cloned goats so they can take out a protein in the goats’ milk and use it to make medicine. The goats are raised in a laboratory. The medicine that is produced can help with certain diseases that affect humans.

A
The goats will have more genetic variation.
B
The goats will become infected with the human diseases.
C
There are unknown health risks to the goats.
D
There could be many health risks to drinking the goats’ milk.
3

What is the main goal of gene therapy?

A
to cure human diseases
B
to produce inexpensive medicine
C
to lower the costs of livestock production
D
to increase the nutritional value in foods
4

Which procedure took the DNA from one sheep to produce a genetically identical lamb, named Dolly?

A
selective breeding
B
gene therapy
C
artificial selection
D
cloning
5

A researcher changes the DNA in a soybean plant so that it produces offspring with a resistance to weed killer.

A
genetic engineering
B
gene therapy
C
cloning
D
selective breeding
6

Which best compares genetic engineering and cloning of animals?

A
Both result in offspring with a single, specific desirable trait.
B
Both result in offspring that are genetically identical to the original organism.
C
Both require that DNA be manipulated in some way.
D
Both require that only females are used in the process.
7

Which best describes a difference between cloning plants and selectively breeding plants?

A
Cloning requires two parents and selective breeding requires one parent.
B
Cloning results in a genetically identical plant and selective breeding does not.
C
Cloning always requires that DNA be modified and selective breeding does not.
D
Cloning always results in larger plants and selective breeding always results in smaller plants.
8

A scientist takes a cell from one cow and an egg from a second cow. The scientist removes the DNA from the egg and replaces it with the DNA from the first cow. The scientist’s goal is to produce a baby cow with DNA that is identical to the first cow.

A
genetic engineering
B
gene therapy
C
cloning
D
selective breeding
9

Why do some people worry that eating genetically modified food may be harmful?

A
Altering the DNA of plants always reduces the nutritional content.
B
Genetic modification reduces the genetic variation in both plants and animals.
C
There have not been enough long-term studies to prove that this food is safe.
D
There have been many studies showing that these foods cause disease.
10

The diagram shows a process used to produce apple trees with the desired trait of sweeter fruits.

Question illustration
A
X: EnzymesY: Apple tree DNA
B
X: EnzymesY: Gene for sweeter fruit
C
X: Apple tree DNAY: Gene for sweeter fruit
D
X: Gene for sweeter fruitY: Apple tree DNA

Did you find these answers helpful?

More from this Course

Quiz
9 verified answers

Advances in Genetics

Quiz
5 verified answers

Quiz

Quiz
3 verified answers

Advances in Genetics