The Bio Brief

Organisms Show Variety in Cell Number, Shape and Size

. How Do Scientists Study Living Cells? Cells are very small, so most of them cannot…
What is a Cell?

A cell is the basic structural unit of all living organisms. Just as bricks are the…
Discovery of the Cell

What is the Discovery of the Cell? The discovery of the cell was an important event…
CELL — STRUCTURE AND FUNCTIONS

Introduction to the Cell: 1. What is a Cell? A cell is the basic structural and…
Sex Determination

What is Sex Determination? Sex determination is the process by which a baby becomes male (boy)…
How Do Traits Get Expressed?

Basic Idea Traits (like height, colour, shape) are controlled by genes. Genes are made of DNA.…
Rules for the Inheritance of Traits

(Mendel’s Contributions) Who was Mendel? Gregor Mendel is called the Father of Genetics. He discovered how…
HEREDITY

What is Heredity? Heredity is the process by which parents pass their traits to their children…
Accumulation of Variation During Reproduction

What Does “Accumulation of Variation” Mean? Variation = small differences among individuals of the same species.…
HEREDITY

Introduction to Heredity What is Heredity? Heredity is the process by which traits or characteristics are…