Definition: The branch of biology that deals with the transmission and variation of inherited characteristics, in particular chromosomes and DNA.

Alright class, settle down, let’s take a look today, At a fascinating topic – genetics, come what may! Now, the dictionary gives us a clue, it's true, About ‘genetics,’ so listen close to you. It’s a branch of biology, quite grand and deep, Exploring how traits are passed down while we sleep. Think of it like this: you look just like your mom, And maybe a little bit like your dad, that's not glum! That's because of genetics , you see, The way inherited features flow free. It’s all about chromosomes and DNA too , Tiny blueprints shaping what we grew! They tell us about color, height, and even more, Passed down through generations, to explore! So ‘transmission’ means passing them along, And 'variation' shows how traits can be strong, Or different, a little unique and bright, That's the magic of genetics, shining light! Do you have any questions? Don't hesitate to share, Let's delve deeper into this fascinating affair!