Download SBI3U: Genetic Processes

SBI3U: Genetic Processes
Date: _________________
Introduction to Genetics
Following the lesson you should be able to define the following terms:
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DNA:
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Chromosomes:
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Diploid:
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Haploid:
The chromosomes from the parents are of the ____________, just different ______________________, so
each child has ________________________________________________.
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Autosomes:
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Sex Chromosomes:
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Genes:
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Trait:
Genes that control traits have different _______________________.
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Alleles:
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Since everyone has two copies of each chromosome, then a person also has _________ alleles for each
trait, one from each ________.
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Who discovered alleles?
SBI3U: Genetic Processes
Date: ____________
History of Genetics and Mendel’s Laws
What were the beliefs of the following people with respect to the study of genetics?
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19th Century Greeks:
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Darwin (1870’s):
Gregor Mendel (1822 - 1884):
 ___________________
 Used ______________ to study genetics, heredity and variation.
 Looked at 7 different traits that only had _________________________.
 From his meticulous work he came up with many “key terms” and, more importantly, two generalizations
that later became known as _____________________.
 Considered the father of genetics (now aka ____________________________)
Why the pea plant?
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Purebred
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Homozygous
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Parent (P) generation
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Filial (F1)generation
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Hybrids
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Heterozygous
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Dominant
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Recessive
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Phenotype
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Genotype
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Law of Segregation
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Law of Independent Assortment