Genetics practice problems: Punnett squares, pedigrees and the genetic code
Mendel, blood groups, X-linked inheritance, transcription and translation, mutations and Hardy-Weinberg: you solve it yourself and type in the result. Five problems, new every day, with worked solutions and the typical exam mistake. Free and without an account.
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The basics without a daily limit in a free account, plus one exam-level task a day. Every level, the exam mode and the AI tutor from €4.99 once or with Plus.
Task
In snapdragons, flower colour shows incomplete dominance: RR is red, WW white and RW pink. A red plant is crossed with a pink one (RR × RW). What percentage of the offspring is red, pink and white?
Red (RR) in %
Pink (RW) in %
White (WW) in %
Probabilities as a percentage number (25 or 18.75), rounded to 2 decimal places; allele frequencies as a decimal (0.02).
Topics with rules and practiceMonohybrid cross · Incomplete dominance · Blood groups · Genetic code …
How the trainer works
Work it out, don’t guess
Probabilities, allele frequencies, map distances: you type the number, e.g. 18.75 or 0.02, plus choices like the genotype or the type of mutation.
With worked solutions
After each problem you see the solution step by step and the typical mistake that costs marks in the exam.
Always new problems
Every problem is generated with new numbers, without AI and always computed correctly. You practise the method, not memorising answers.