Students’ Learning Outcomes
· Describe the relationship between DNA, Gene and Chromosome.
· Explain How DNA is copied and made.
Information for Teachers
· Deoxyribonucleic acid(DNA): the chemical, existing at the center of the cells of living things, that reins the structure and purpose of each cell and transports genetic information during reproduction
· Chromosomes are small thread like structure found in the nucleus of the cell which controls the characteristics of living organisms.
· DNA is called the hereditary material because it is capable of self-replication and is transferred from one generation to another.
· Genes are the unit of inheritance and these are the short lengths of DNA in chromosomes.
· A unit of heredity that is shifted from a parent to children and is held to regulate some characteristic of the children.
Concept Map
Material / Resources
A chart or model showing DNA, Gene and Chromosomes, A chart showing the process of replication of DNA
Worm up activity
· Ask following questions to the students:
o What is inheritance?
(Expected response: Passage of traits from one generation to the other)
o What is called as the genetic material?
(Expected response: DNA)
o Genes are made of?
(Expected response: DNA)
o Where the genes are located?
(Expected response: On Chromosomes)
· After the students response introduce the today’s topic to the class.
Development
Activity 1
· Show chart or model to the students and explain them the relationship among.
Activity 2
· Explain the process of replication of DNA to the students with the help of a chart.
·
Replication of DNA
Sum up / Conclusion
· Summarize the lesson as; chromosomes are thin thread like structures present in the nucleus of the cell. Chromosomes are made of DNA.
· Genes are the unit of inheritance which transfers characters to the next generation.
· DNA is capable of self-replication.
Assessment
· Ask the following questions to assess the understanding of the students:
o How the Genes and DNA are interlinked?
o Where the chromosomes are located inside the cells?
o Which information is stored in the genes?
o What is meant by replication?
o In DNA replication, what happens to the original DNA strands?
Follow up
· Ask the students to build DNA model by using cut outs of card board paper of different colors, and display the model in the class.
