Explorers of DNA
Introduction Task Process Reflection Conclusion Sources
This webquest is going to take us on an adventure along with the Explorers of DNA! We are going to study pioneers in DNA research and what they have contributed to the field of biology. You will travel to various sites to collect information which will then be used to answer questions regarding the pioneer and their DNA discoveries!
Students will travel to various websites to collect information on pioneers in DNA research such as Mendel, Watson, Crick, and the researchers involved in the Human Genome Project. Students will then answer questions relating to each pioneer and their DNA discoveries. This webquest is based on National Science Education Standard C for grades 9-12:
You may choose to work in teams or individually. By clicking on the pictures above, you will begin your exploration of the pioneers of DNA. Visit each site to answer the following questions:
In what year did Mendel find that traits were linked to genes?
Mendel found that visible traits were called _________.
Mendel used what vegetable in his genetic research?
Two __________ make up the genotype.
Watson and Crick are responsible for finding the structure of what molecule that they called "the secret of life?"
Watson and Crick found that DNA is a ________ _______ shape and carries genetic information.
Watson was studying the bases that make up DNA when he discovered the helix relationship. What are the bases that make up DNA?
In what scientific journal did Watson and Crick publish their findings?
When did the Human Genome Project begin?
What is the goal of the Human Genome Project?
What are three experimental organisms that the Human Genome Project is working to sequence?
Looking at the timeline in 1999, what was the first human chromosome that was sequenced?
What did the sequence of chromosome 22 provide for the researchers?
List two things researchers see as future impacts of the Human Genome Project (under The Future in the timeline).
Using the genetic dictionary link, define the following words we have not discussed in class yet:
►Phenotype ► Allele ► Genome
►Genotype ► Chromosome ► DNA (what does it stand for? )
This lesson provides students with basic information regarding the pioneers of genetic research such as Mendel, Watson and Crick, and the researchers involved in the Human Genome Project. In addition, students are introduced to terms previously not discussed in class such as phenotype, genotype, allele, genome, chromosome, and DNA.
Genotype: For the hereditary constitution of an individual, or of particular nuclei within its cells.
Allele: Two or more alternative forms of a gene resulting in different gene products and, thus, different phenotypes.
Genome: The self-replicating genetic structures of cells containing the cellular DNA that bears in its nucleotide sequence the linear array of genes.
Chromosome: The self-replicating genetic structures of cells containing the cellular DNA that bears in its nucleotide sequence the linear array of genes.
DNA (what does it stand for?): Deoxyribonucleic acid (DNA).
Cold Spring Harbor Laboratory. (2002). DNA from the beginning. Retrieved March 22, 2004, from http://www.dnaftb.org/dnaftb/2/concept/index.html
National Academies of Sciences. (1995). National Science Education Standards. Retrieved March 26, 2004, from http://www.nap.edu/readingroom/books/nses/html/6e.html#ls
National Human Genome Research Institute. (2004). The human genome project. Retrieved March 22, 2004, from http://www.genome.gov/Pages/EducationKit/online.htm
Tamarin, R. H. (1999). Principles of genetics. Boston: McGraw Hill.
Time, Inc. (2003). The Time 100 scientists and thinkers; Francis Crick and James Watson. Retrieved March 22, 2004, from http://www.time.com/time/time100/scientist/profile/watsoncrick.html