Unit 4 Review

Front

What happens to spindle fibers during prophase and telophase?

Back

Spindle fibers form in prophase and break down in telophase.

Front

What type of cell division begins with a diploid parent cell?

Back

Both mitosis and meiosis begin with a diploid parent cell.

Front

What occurs to chromosomes in telophase compared to prophase?

Back

In telophase, chromosomes uncoil, while in prophase, they condense/coil.

Front

What does a karyotype indicate about nondisjunction?

Back

A karyotype shows nondisjunction if there is a monosomy (one chromosome) or trisomy (three chromosomes) present.

Front

Why are checkpoints important in the cell cycle?

Back

Checkpoints ensure cells have correctly completed each stage and prevent uncontrollable division.

Front

Define mitosis.

Back

Mitosis is the process of cell division that results in two identical daughter cells, maintaining the same chromosome number.

Front

Define meiosis.

Back

Meiosis is the type of cell division that reduces the chromosome number by half, resulting in four genetically diverse gametes.

Front

What is the role of spindle fibers?

Back

Spindle fibers help separate chromosomes during cell division.

Front

What is the difference between diploid and haploid cells?

Back

Diploid cells have two sets of chromosomes (2n), while haploid cells have one set (n).

Front

What is a chromosome?

Back

A chromosome is a structure made of DNA and protein that contains genetic information.