Genetics Introduction

Front

What are chromosomes made up of?

Back

DNA.

Front

Where are chromosomes located in a cell?

Back

In the nucleus.

Front

Do chromosomes appear spontaneously in our cells?

Back

No, they do not appear out of thin air.

Front

What do chromosomes carry?

Back

Genes.

Front

What is a quality or characteristic someone has called?

Back

Trait.

Front

How do we symbolize a dominant trait?

Back

With an uppercase (capital) letter.

Front

What is the trait that is stronger or expressed called?

Back

Dominant trait.

Front

What is the trait that is weaker and not expressed called?

Back

Recessive trait.

Front

How many pairs of chromosomes do humans have?

Back

23 pairs.

Front

What is the basic unit of heredity?

Back

Gene.