Chapter 5: 5.5 Forked-Line and Probability Methods Flashcards
1
Q
Describe:
Forked Line Method
A
Used for dihybrid crosses or more (2 or more alleles involved)
* Easier than using a Punnett square for crosses that involve many alleles
2
Q
What is the diagram approach for the Forked Line Method?
A
- Each level is an allele
- Multiply the levels to get the probability for the offsprings phenotypes
3
Q
What does the number of offsprings with different traits make up?
A
The phenotypic ratio
4
Q
What is the downside to the Forked Line Method?
A
Cannot give the genotype ratio
5
Q
How can we get the genotypic ratio?
A
Probability Method
6
Q
Explain:
Probability Method:
A
Multiply the probabilities of the different genotypes
* Homozygous dominant, recessive, or heterozygous
