Unit 2 Study Guide

Front

What is the primary purpose of cell division in multicellular organisms?

Back

To enable growth and repair.

Front

What is a polygenic trait?

Back

A trait that is influenced by multiple genes, such as human skin color.

Front

What is an operon?

Back

A cluster of genes with a single promoter that regulates gene expression.

Front

What role do chromosomes play in cell division?

Back

They ensure DNA is accurately distributed to daughter cells.

Front

What is the function of the repressor protein in the lac operon?

Back

It binds to the operator to prevent transcription.

Front

Define cell division.

Back

The process by which a parent cell divides into two or more daughter cells.

Front

What is mitosis?

Back

A type of cell division that results in two identical daughter cells.

Front

What is meiosis?

Back

A type of cell division that reduces the chromosome number by half, producing gametes.

Front

What is the significance of the cell cycle?

Back

It regulates the growth and division of cells.

Front

What are homologous chromosomes?

Back

Chromosome pairs, one from each parent, that are similar in shape, size, and genetic content.