Zusammenfassung der Ressource
Genes and inheritance
- Ancient genetics
- Pagenesis
- Pangenes
- Blending
- intermediate trait
- Mendel
- Advantages of using pea plants
(typically self-fertilize)
- Controlled mating
- easy self-fertilization / cross-fertilization
- observable characteristics with 2 distinct forms
- True-breeding strains
- repeated self-fertilization
- Characteristics
- Flower colour
- Flower position
- Seed colour
- Seed shape
- Pod colour
- Pod shape
- Stem length
- Law of segregation
- Monohybrid cross
- one trait disappear in F1
- reappear in 1/4 of F2
- a cross to track inheritance of one character
- Four hypothesis
- 1. Genes are found in diff versions as alleles
- 2. Inheriting 2 alleles for each feature
- 3. dominant v.s. recessive
- 4. law of segregation
- Law of independent assortment
- Dihybird cross
- non-parental combination appears
- Test cross
- determine unknown phenotype
- mate with homozygous recessive
- Probability
- Rule of multiplication
- Rule of addition
- Non-Medelian
- Incomplete dominance (four o-clock)
- Multiple alleles -
ABO
- Codominance
- ABO: alleles determine presence of oligosaccharide
- Epistasis
- Polygenic inheritance
- Linked gene
- Sex linked gene