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19 Cards in this Set
- Front
- Back
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plato argues that all things had an " essence"
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essential
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lamarckism
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organism can pass on characteristics that is acquired during its lifetime to its offspring
heritability of acquired characteristics |
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fr. gregor mendel
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augustinian monk, brno, present day czech republicj
published in 1866, but unknown to darwin and others until rediscovered at turn of the century hybridization of garden pea, pisum sativum |
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mendel's pea
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mendel studied garden peas
have male and female pants in same flower can self- fertilize possess many variable traits can be easily grown and manipulated |
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true breeding
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something that when you breed it, has the exact same genetic characteristics
self fertilization produced offspring are all identical to the parent |
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phenotype
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physical appearance of an individual
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genotype
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genetic makeup of an individual, interacts with environment
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genes and alleles
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genes are units of inheritance, multiple alleles exist for each gene, the combo of alleles determines gene expression
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homozygote
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both alleles are the same
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heterozygote
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both alleles are different
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dominant alleles
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expressed if homo- or hetero-zygous
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loci
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locations of genes
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how many sets of homologous chromosomes does each chromosome have
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2
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natural selection is a sorting process of different ________ and ______________
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survival and reproduction
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what mendel did
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provided a model of inheritance for these characteristics
testable and pedictable |
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reginald c. punnent
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father of genetics as a scientific discipline
repeated mendel's experiments with peas and verified mendel;s laws with stat analyses |
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test cross
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cross unknown genotype with homozygous recessive
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Mendel's principle o independent assortment
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each pair of alleles segregates independently of others during gamete production
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mendel postulates
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paired unit factors- AGenetic characters are controlled by alleles that exist in pairs in each individual organism (two alleles for each gene)
Dominance- when 2 unlike alleles are present in an individual, one allele is dominant and its trait is preferentially expressed segregation- during gamete formation parried alleles esegregate |
