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
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”.
· Draw the diagram of a bacterium with the help of diagram.
· Explain the structure of a bacterium with the help of diagram.
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.
· 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.
What does it represent?
Correct / Expected response
Small piece of card
D N A (gene)
· Draw the following worksheet on the board.
· Ask the students to copy on their notebooks and complete it.
· Expected response is as follow:
2. Cutting Enzyme
5. Inserted gene
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.