1. What is the Rabbit Color Genetics?

Rabbit coat color is determined by multiple genes, with the B gene being one of the most important. The B gene has two alleles: B (black) is dominant over b (brown). This calculator predicts the probability of offspring coat colors based on parental genotypes.

2. How Does the Calculator Work?

The calculator uses Punnett square principles:

Where:

• BB — Homozygous black (phenotype: black)
• Bb — Heterozygous black (phenotype: black, carrier of brown)
• bb — Homozygous brown (phenotype: brown)

Explanation: The calculator combines all possible allele combinations from both parents to determine probable offspring genotypes.

3. Understanding Rabbit Coat Colors

Details: In rabbit color genetics, black (B) is dominant over brown (b). A rabbit needs only one B allele to display black coat color, while two b alleles are needed for brown color.

4. Using the Calculator

Tips: Select the known or suspected genotype for each parent. If phenotype is known but genotype uncertain, remember that black rabbits could be either BB or Bb.

5. Frequently Asked Questions (FAQ)

Q1: What if I only know the parents' colors?
A: Black rabbits could be BB or Bb. Brown rabbits must be bb. For unknown genotypes, you may need to run multiple scenarios.

Q2: Are there other genes that affect rabbit color?
A: Yes, the B gene is just one of several. Other genes control patterns, shading, and additional colors.

Q3: How accurate are these predictions?
A: The calculator shows statistical probabilities. Actual litter results may vary due to random chance.

Q4: Can this predict colors for multiple genes?
A: This calculator only considers the B gene. For complete color prediction, more complex genetic analysis is needed.

Q5: What's the difference between genotype and phenotype?
A: Genotype is the genetic makeup (BB, Bb, bb), while phenotype is the physical appearance (black or brown).