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9 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Mendel’s 1st law of segregation |
Each organism possesses 2 homologous alleles Alleles separate when gametes are formed Alleles separate in equal proportion |
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Mendel’s 2nd law of independent assortment |
Alleles at different loci assort independently |
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What is a test cross? |
A cross to a recessive mutant individual |
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What does a test cross reveal? |
The genotype of the other parent, from the phenotype of the offspring |
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What was the first link of chromosomes to phenotype? |
The discovery of sex chromosomes in several species by McClung et al. |
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What is chromosomal theory? |
Homologous pairs of chromosome consist of one maternal and one paternal chromosome Chromosome pairs segregate independently into gametes |
2 points |
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What should 2nd law state? |
Unliked characters assort independently |
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What are linked genes? |
Genes located nearby on the same chromosome, whose alleles do not assort independently |
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When was linkage discovered? |
Hunt Morgan’s work with Drosophila Eye colour and sex didn’t segregate independently |
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