CH 2 Science

Front

What is a gene?

Back

A gene is a part of a chromosome that carries information and controls a trait.

Front

What is a dominant gene?

Back

A dominant gene is one whose effect is expressed even if only one copy is present.

Front

What is a recessive gene?

Back

A recessive gene is one whose effect can be hidden by a dominant gene.

Front

What is DNA?

Back

DNA (deoxyribonucleic acid) is a molecule that contains the genetic instructions for the development and function of living things.

Front

How do traits pass from parents to offspring?

Back

Traits can pass from parents to offspring through genes.

Front

What is cell division?

Back

Cell division is the process by which a parent cell divides into two or more daughter cells.

Front

Why do some organisms reproduce quickly?

Back

Some organisms reproduce quickly because they reproduce by cell division.

Front

What is the role of genes in diseases?

Back

Some diseases are caused by traits that can be inherited from parents.

Front

What is the relationship between genes and chromosomes?

Back

Genes are segments of DNA located on chromosomes.

Front

What is a trait?

Back

A trait is a characteristic or feature of an organism, which can be influenced by genes.