1. What is Pedigree Probability?

Pedigree probability refers to the likelihood that offspring will inherit a particular genetic trait based on the genotypes of their parents. It's fundamental in genetic counseling and predicting inheritance patterns.

2. How Does the Calculator Work?

The calculator uses the Punnett square method:

Where:

• Parent genotypes are split into their individual alleles
• All possible combinations are calculated
• Desired outcomes are counted based on selected trait

3. Understanding Punnett Squares

Details: A Punnett square is a diagram that predicts the genotype distribution of offspring from parental alleles. It shows all possible combinations of parental alleles.

4. Using the Calculator

Tips: Select the genotypes of both parents and the desired trait (phenotype or genotype) you want to calculate probability for.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between genotype and phenotype?
A: Genotype is the genetic makeup (e.g., AA, Aa, aa), while phenotype is the physical expression (e.g., dominant or recessive trait).

Q2: How accurate are these predictions?
A: They represent statistical probabilities - actual outcomes may vary due to random chance in small sample sizes.

Q3: What about more complex inheritance patterns?
A: This calculator handles simple Mendelian traits. For codominance, multiple alleles, or polygenic traits, more complex methods are needed.

Q4: Can this predict actual children's traits?
A: It gives probabilities, not guarantees. Each conception is an independent event.

Q5: What if parents have unknown genotypes?
A: Family history and phenotypic expression can help infer likely genotypes.