Greg Mendel was a hungrarian botanist, 1866
- Monohybrids
- 1 gene, though many alleles.
- Dihybrids
- 2 genes, though many alleles.
- Hybrid
- Cross mating - created hybrid offspring w/ 2 different versions of a single gene.
Webster works - pond native area update - bioblitz, can take pictures of native animals in the morning.
- Recessive
- If you're seeing it, it's homozygous, skips generations.
- If one parent is heterozygous, the recessive gene is hidden.
3 Principles of Genetics
_Greg Mendel
- Used quantitative methods, counted stuff.
- Dominance
- Observed phenotypes / traits are seen in the heterozygote.
- Segregation of Alleles
- Homologous pairs separate.
- Independent Assortment
- Segregation of tetrads
- Only genes of different chromosomes separate.
Anatomy of a Flower
- Both male and female parts = monoecious.
- Plants with same phenotype when selfed over many generations = true breeding (homozygous), aka pure breed.
- Controlled sex in flowers - anthers removed to prevent self-fertilization.
- Selfing
- Self pollination.
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- In animals - you cross brother/sister.
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- In plants, you pollinate the same perfect flower.
- Pistil
- ?
- Stamen
- ?
- Anthers
- ?
- Discrete Traits
- No blending
- = Antagonistic trait pairs - no intermediate/blended phenotypes.