Biology Toolkit
How to use
What it does
Several tools for studying biology: transcribe a DNA sequence to mRNA and translate it to an amino acid chain, look up the codon-to-amino-acid table, browse illustrated atlases of organelles and human anatomy, work out the possible blood types of children from the parents' types and their probabilities, sketch a simple pedigree, and compute how much of a radioactive substance remains after a given number of half-lives.
How to use it
Tabs at the top switch between modules. The sequence tool takes a DNA string, offers a reading-frame choice and returns the amino acid chain; the codon table works both ways, from an amino acid or from a base triplet; the atlas shows structures as diagrams with explanatory text; the blood-type tool reports theoretical probabilities for each possible type; the pedigree canvas adds individuals and relationship lines; the half-life calculator takes an initial amount, a half-life and elapsed time and returns what is left.
FAQ
What does the sequence tool accept as input?
A DNA string plus a reading-frame choice; the tool then transcribes the mRNA and translates the amino acid chain. RNA or protein input is outside its scope.
Can I take the blood-type result at face value?
It reports theoretical probabilities for each possible child blood type under the usual inheritance rules — good for understanding the logic, but it is not a medical test, and a lab result is the only authoritative answer.
What is the half-life calculator useful for?
Enter an initial amount, a half-life and elapsed time to get the remainder — handy for exercises and for building intuition about exponential decay. It is an idealised calculation and does not model decay chains of specific nuclides.
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