Why are genes important in determining heredity traits?

Answer 1

When your parents cells came together to create you, half of your mother's DNA and half of your father's DNA come together in one cell.

This is why you can have your dad's brown hair, but your mother's long fingers.

Some genes are recessive and need two (one from your mother's side of the family and one from your dad's side) for you to have that gene, such as green eyes. This gene doesn't necessarily need to be seen in your parent, because it can be passed down from your grandparents.

Some traits, like a short temper, can be caused by other things, like the need of things to be perfect. That doesn't mean you got this trait from DNA; you may have just gotten it from being in the same environment as someone with a short temper; this is because it is natural for children to mock what their parents do.

Answer 2

Genes are the units of heredity that contain information to determine physical and biochemical traits in an organism. They are passed down from parents to offspring, influencing an individual's characteristics such as eye color, blood type, and susceptibility to diseases. Understanding genes helps in predicting and studying genetic disorders, as well as in advancing fields like medicine and agriculture.

Answer 3

If selected traits were not heritable a species may die out due to the fact that the inherited trait could be an adaptation needed to survive within the environment the organism is living.

Answer 4

A gene is a unit of a heredity in a living type of organism.