Selective & Genetic Engineering

Which is the correct order from smallest to largest:

• Gene, Chromosome, DNA

• DNA, Gene, Chromosome

• DNA, Chromosome, Gene

• Gene, DNA, Chromosome

The figure below shows a Punnett Square for an inherited trait. What genotype does the highlighted "dd" represent?

• The genotype of the mother's egg.

• The genotype that only the girls will inherit.

• The genotype that any of the children could inherit.

• The genotype that exactly 1/4 of the children will inherit.

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NGSS.HS-LS3-1

Mutations are natural ways the genetic makeup can change. Is it the only way to change our genetic makeup?

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NGSS.HS-LS3-2

NGSS.HS-LS4-2

What are other ways the genetic makeup can change?

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NGSS.HS-LS3-2

NGSS.HS-LS4-2

What are some examples of changes in genetic makeup?

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NGSS.HS-LS3-2

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A scientist takes DNA from a species of tomato that has the best flavor and adds it to the DNA of a tomato that grows fast: Circle GENETIC ENGINEERING or SELECTIVE BREEDING and explain why.

• GENETIC ENGINEERING

• SELECTIVE BREEDING

Farmers take two fattest pigs and mate them: Circle GENETIC ENGINEERING or SELECTIVE BREEDING and explain why.

• GENETIC ENGINEERING

• SELECTIVE BREEDING

A farmer looks through a catalogue of steer (male cows) and picks out the strongest looking one. He sends in an order and has that steer sent to him and then has it mate with his female cow, so that he can get a strong offspring overall. Circle GENETIC ENGINEERING or SELECTIVE BREEDING and explain why.

• GENETIC ENGINEERING

• SELECTIVE BREEDING

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NGSS.HS-LS3-2

I think humans have been using (GENETIC ENGINEERING or SELECTIVE BREEDING) for longer because.

• GENETIC ENGINEERING

• SELECTIVE BREEDING

The picture on the right shows how scientists attempted to change the population of fish living in a lake. Fish that were “culled” were fished out and eaten. Those that were “saved” were released back into the lake to reproduce. Is this an example of selective breeding or genetic engineering? Explain.