Grade
11 Biology, Academic (SBI 3U) Genetic Continuity
Overall Expectations
By the end of this unit,
you will
1. DEMONSTRATE an understanding of the necessity of meiosis
and describe the importance of genes in transmitting hereditary characteristics
according to Mendel's model of inheritance;
2. PERFORM laboratory studies of meiosis and analyse the results of genetic
research related to laws of heredity;
3. OUTLINE the scientific findings and some of the technological advances
that led to the modern concept of the gene and to genetic technology,
and demonstrate an awareness of some of the social and political issues
raised by genetic research and reproductive technology;
Specific
Expectations
Understanding Basic Concepts
4. DEMONSTRATE an understanding of the process and importance of mitosis
(e.g., cell division and plant mitosis);
5. EXPLAIN how the concepts of DNA, genes, chromosomes, and meiosis account
for the transmission of hereditary characteristics from generation to
generation (e.g., explain how the sex of an individual can be determined
genetically; demonstrate an understanding that the expression of a genetic
disorder linked to sex chromosomes is more common in males than in females.);
6. DESCRIBE and EXPLAIN the process of discovery (e.g., the sequence of
studies and the knowledge gained) that led Mendel to formulate his laws
of heredity;
7. EXPLAIN the process of meiosis in terms of the replication and movement
of chromosomes;
8. DESCRIBE genetic disorders (e.g., Down syndrome, cystic fibrosis, muscular
dystrophy, fragile X syndrome) in terms of the chromosomes affected, physical
effects and treatment;
9. EXPLAIN using Mendelian genetics, the concepts of dominance, co-dominance,
incomplete dominance, recessiveness and sex-linkage;
10. PREDICT the outcome of various genetic crosses;
Developing
Skills of Inquiry and Communication
11. EXPLAIN the process of meiosis, with reference to a
computer simulation or to their own investigations with a microscope (e.g.,
using slides of grasshopper testis, explain what happens in the first
and second stages of prophase and metaphase and anaphase 2 in meiosis;
12. SOLVE basic genetic problem involving monohybrid crosses, incomplete
dominance, co-dominance, dihybrid crosses and sex-linked genes using the
Punnett method;
13. ORGANIZE data (e.g., in a table) that illustrate the number of chromosomes
in haploid cells and diploid cells, and the number of pairs of chromosomes
in diploid cells, that occur in various organisms before, during, and
as a result of meiosis;
14. COMPILE qualitative and quantitative data from a laboratory
investigation on monohybrid and dihybrid crosses and present the results,
either by hand or computer (e.g., record observations using a "Virtual
Fly" laboratory software package);
15. RESEARCH genetic technologies using sources from print and electronic
media, and synthesize the information gained (e.g., describe Human Genome
project, transgenics, or the process of genetic screening; list the advantages
of cloning or the genetic manipulation of plants).
Relating
Science to Technology, Society and the Environment
16. SUMMARIZE the main scientific discoveries of the nineteenth
and twentieth centuries that led to the modern concept of the gene (e.g.,
the discoveries of Hugo de Vries, W.S. Sutton, Thomas Morgan, J. Muller,
Barbara McClintock, Rosalind Franklin, James Watson, and Francis Crick);
17. DESCRIBE and ANALYSE examples of genetic technologies that were developed
on the basis of scientific understanding (e.g., the improvement of an
experimental procedure to extract DNA from bacterial or plant cells);
18. IDENTIFY and DESCRIBE examples of Canadian contributions to knowledge
about genetic processes (e.g., research into cystic fibrosis) and to technologies
and techniques related to genetic processes (e.g., the invention of nuclear
magnetic resonance [NMR]).
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