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21 Cards in this Set
- Front
- Back
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Genome |
The collective body of genetic information in an organism |
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When were chromosomes discovered? |
In the 1880s |
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When were the discrete units of inheritance discovered? |
In 1865 |
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When were homologous chromosome discovered? |
In 1903 |
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When was crossing over discovered? |
B/t 1909-1911 |
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When was it discovered that genes could mapped in order along the length of the chromosome? |
B/t 1911-1913 |
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When was DNA discovered as the genetic material? |
B/t 1944-1952 |
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When was the structure of DNA discovered? |
1953 |
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Who established the Law of Inheritance? |
Mendel |
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Genes |
The units of inheritance that are characteristics of organism |
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Allele |
Alternative forms of a gene |
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Gametes |
contains one gene for each trait |
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Somatic cells |
arise by the union of male and female gametes |
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What happens to chromosome during meiosis? |
Homologous chromosomes associate and form a bivalent; then separate into different cells. |
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Can genes on the same chromosome independently assort? |
no |
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How was the first to use fruit flies in genetic research? |
Morgan |
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Mutation |
A mechanism for variation in populations |
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What did studies w/ Drosophila confirm? |
That genes reside on chromosomes |
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Crossing over / Genetic Recombination |
When pieces of homologous chromosomes exchange segments |
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Loci |
The position of a gene along the chromosome |
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Frequency of recomination indicates what? |
The distance b/t the loci |
