Cell Division

Front

What is the result of mitosis?

Back

2 genetically identical cells.

Front

What condition is caused by nondisjunction at pair 21 during meiosis?

Back

Down Syndrome.

Front

Chromosomes are made up of two identical sister _____________.

Back

chromatids.

Front

What process is shown during Prophase 1 when alleles are exchanged?

Back

crossing-over.

Front

What is a permanent change in the DNA sequence that can affect a single gene or group of genes?

Back

Gene Mutation.

Front

What is the purpose of mitosis?

Back

To produce two identical daughter cells for growth and repair.

Front

What is the difference between mitosis and meiosis?

Back

Mitosis results in 2 identical cells; meiosis results in 4 genetically different cells.

Front

What are homologous chromosomes?

Back

Chromosomes that are similar in shape, size, and genetic content.

Front

What is the role of spindle fibers during cell division?

Back

To help separate the chromosomes during mitosis and meiosis.

Front

What is a chromatid?

Back

One half of a duplicated chromosome.