Mendelian Genetics Flashcards
1
Q
Model Organism
Pea Plant (pisum Sativum)
A
Peas are ideal model organism:
* Quick genereation time
* Grow Large numbers in limited spaces
* Pure breeding lines avalible
* Have discrete traits (all or nothing with no intermediate phenotypes)
* A self fertelizing plant that can be cross fertilized
2
Q
True Breeding Plants
True Breeding Plants
A
- Plant shows one specific trait unchanfged for generation
- What causes a trait to always show up in 100 percent of offspring?
- self fertelizing plants
- Homozygous Genotypes
3
Q
Mendels Deductions
Mendels Deductions
A
- Trairts are controlled by unit factors that exisit in pairs (genes)
- one unit factor is dominant and the other is recessive (Trait seen in F1 = Dominant
- The two unit factors seperate randonmly into two gametes, one factor each
4
Q
Medels First Law
Mendels First Law
A
- Parents alleles will be divided randomly into gametes
* Each gamete will recive one allele or the other, stastically w/equal likelihood (homozygote parents = identical)
* Fertilization brings those alleles together to produce ofspring
5
Q
Mendels 2nd Law
Mendels 2nd Law
A
- Each trait is inherited independently of every other trait
* Separate genes are not inherited together or linked
* Assort independently
* chances of seeing each possible phenotype is determines only by stastical probibility
5
Q
Mendels 2nd Law
Mendels 2nd Law
A
- Each trait is inherited independently of every other trait
* Separate genes are not inherited together or linked
* Assort independently
* chances of seeing each possible phenotype is determines only by stastical probibility
6
Q
Pedigree Conventions
Pedigree Conventions
A
