Bio quiz

What is the role of the G1 phase?

The cell grows to prepare for chromosome copying.

What happens during the S phase?

the chromosomes are copied.

What is the purpose of the G2 phase?

The cell prepares for meiosis

What is Prophase I in meiosis?

Crossing over occurs between homologous chromosomes

What occurs during Metaphase I?

Homologous chromosomes line up at the center of the cell.

What happens in Anaphase 1?

Homologous chromosomes separate, moving to opposite poles of the cell.

What happens during Telophase I?

The cell begins to split into two daughter cells.

Define Interkinesis in meiosis.

A waiting phase after Telophase

What occurs during Metaphase II?

Duplicated chromosomes line up at the center of the cell.

What is the role of Anaphase II?

Sister chromatids separate and move to opposite sides of the cell.

What is Telophase II?

The final phase where the cell separates into four haploid cells.

How does crossing over contribute to genetic variation?

Chromosomes exchange segments, creating new combinations of dominant and recessive alleles.

Why is genetic variation important for a species?

It creates diversity, allowing populations to adapt and evolve.

Cells become haploid after what phase

Anaphase 1

What is the difference between haploid and diploid?

Haploid cells contain one set of chromosomes, whereas diploid cells have two sets.