Biology Flashcard

Front

What are homologous chromosomes?

Back

Chromosomes that are organized in pairs, are the same size, and have the same genes.

Front

What is the role of DNA in the cell?

Back

To store and transmit genetic information.

Front

What does a pedigree show?

Back

A pedigree presents information about the instances of a genetic trait or disease in a family.

Front

What is a centromere?

Back

The part of a chromosome that holds the two sister chromatids together.

Front

How many individuals are affected by a disease in a pedigree?

Back

The number of affected individuals can be counted from the pedigree diagram.

Front

What is the function of chromosomes?

Back

To carry genetic information in the form of genes.

Front

What is a gene?

Back

A segment of DNA that contains the instructions for making a specific protein.

Front

What is sickle cell anemia?

Back

A genetic disorder that affects the shape of red blood cells.

Front

What is the significance of genetic information?

Back

It determines the traits and characteristics of an organism.

Front

What are sister chromatids?

Back

Identical copies of a chromosome that are connected by a centromere.