Biology Calculators
Blood Type Calculator: Child's Blood Type from Parents
Which blood types and Rh factors a child can have given the parents' blood types, the probability of each, and possible blood types of the father.
Punnett Square Calculator: Monohybrid, Dihybrid, Trihybrid
A Punnett square from the parents' genotypes: gametes, genotypic and phenotypic ratios, monohybrid, dihybrid and trihybrid crosses, sex-linked inheritance.
Chargaff's Rule Calculator: Nucleotide Percentages in DNA
The percentage and number of nucleotides in DNA from one nucleotide, the DNA length and mass, and the number of hydrogen bonds.
DNA to RNA and Protein Calculator
From a DNA or mRNA fragment: the complementary strand, transcription, tRNA anticodons, amino acids from the genetic code table, DNA length and mass.
Ecological Pyramid Calculator: the 10% Rule
The mass and energy of each link of a food chain by the 10% rule and the share of energy passed to the next level.
Genetic Code Table
The mRNA codon table: which amino acid each triplet encodes.
Amino Acids Table
The twenty amino acids of proteins: names, three-letter and one-letter codes.
Biology calculators solve school problems in genetics, molecular biology and ecology, with a step-by-step solution.
- Blood type calculator — the child's blood type and Rh factor from the parents, with probabilities; possible blood types of the father.
- Punnett square — monohybrid, dihybrid and trihybrid crosses, genotypic and phenotypic ratios, sex-linked inheritance.
- DNA and RNA — complementary strand, transcription, tRNA anticodons and the protein from the genetic code table.
- Chargaff's rule — percentage and number of nucleotides, DNA length and mass.
- Ecological pyramid — the 10% rule for a food chain.