What is Mendelian inheritance in biology?
In biology, Mendelian inheritance refers to the rules describing how traits pass from parents to offspring through alleles. It matters because the same idea reappears across many later topics, so building a clear mental picture of it early saves a lot of time.
How to approach it step by step
To work with Mendelian inheritance confidently, set up a Punnett square with parental gametes, then read the ratios. LetMeTeach draws this out live on screen while explaining it aloud, so you watch each part appear instead of decoding a static block of text. You can interrupt at any point and ask for the same idea again in simpler words, in another language, or with a different example.
Worked example
A Tt × Tt cross gives a 3:1 phenotypic ratio.
The mistake most learners make
Reading genotype ratios as if they were phenotype ratios.
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