Students’ Learning Outcomes
· Define bacterium.
· Explain how genes are introduced into a bacterium.
Information for Teachers
· Bacterium is a unicellular microorganism which contains a circular extra chromosomal region, known as plasma.
· Plasma is used as vector, (can carry foreign gene) in genetic engineering.
· Replication time of plasma is very short. so, it
Concept Map
Material / Resources
Board, chalk/marker, chart, colored cards, scissors, white sheets, gum
Worm up activity
· Ask the following questions to the students:
o Are the bacteria unicellular or multi cellular?
o Do the bacteria contain chromosome?
· Now introduce the students about today’s topic “Process of genetic engineering”.
Development
Activity 1
· Draw the diagram of a bacterium with the help of diagram.
· Explain the structure of a bacterium with the help of diagram.
Activity 2
Sum up / Conclusion
· Tell the students that we have learns that bacterium is a uni color microorganism and contains extra chromosomal region which can carry foreign gene. This extra chromosomal region is known as plasma. It replicates very fast. Plasma is used as vector.
Assessment
· Arrange the required material.
· Divide the class into groups.
· Tell the students that each of the two different colored cards represent bacterial plasma and DNA (gene) respectively.
· Ask the students to prepare:
o A ring- like structure from a card which represents a plasma.
o Cut a half inch card from the ring making an opening.
o Take a piece of the other card of same size of ring opening, and paste this piece on ring with the help of gum.
o Paste the ring on piece of white paper.
· Now ask following question from the students.
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What does it represent?
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Correct / Expected response
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Ring
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Plasma
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Small piece of card
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D N A (gene)
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Scissors
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Cutting enzyme
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Glue/gum
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Joining enzyme
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Follow up
· Draw the following worksheet on the board.
· Ask the students to copy on their notebooks and complete it.
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· Expected response is as follow:
1. Bacterium
2. Cutting Enzyme
3. Plasma
4. Plasma
5. Inserted gene
6. Carrier
7. Divides
8. Produced
9. Genetic engineering
· A man was diagnosed diabetes. Doctors recommended him insulin daily. He has two options to get insulin, one from pig and other from bacteria through genetic engineering.
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