Meiosis Madness
Mitosis Moments
Cell Cycle Stages
DNA & Chromosomes
Cellular Checks & Balances
100

What is the purpose of meiosis in sexually reproducing organisms?

To produce gametes (sperm and egg cells) with half the number of chromosomes as the parent cell.

100

What is the main purpose of mitosis in multicellular organisms?

To produce identical cells for growth, repair, and maintenance.

100

What is the main purpose of the cell cycle?

To prepare a cell for division and produce two identical daughter cells.

100

What is the shape of DNA, often described as a twisted ladder?

Double helix.

100

What are checkpoints in the cell cycle?

  • Mechanisms that monitor and verify whether the cell is ready to proceed to the next phase.

200

 In which stage of meiosis does crossing over occur, leading to genetic variation?

Prophase I.

200

During which phase of mitosis do chromosomes align in the middle of the cell?

  • Metaphase.

200

Which phase of the cell cycle is where the cell grows and performs normal functions?

G1 phase.

200

What is a chromosome made of?

DNA and proteins (specifically histones).

200

What is the primary function of the G1 checkpoint?

To ensure the cell has adequate size, nutrients, and undamaged DNA before DNA synthesis.

300

How many cells are produced at the end of meiosis, and are they genetically identical or different?

Four genetically different cells.

300

What structure pulls sister chromatids apart during anaphase?

The spindle fibers.

300

During which cell cycle stage does DNA replication occur?

S phase.

300

What is Trinitee's and Brooke's major?

Free Points :)

Biology

300

What percent is your final exam?

30%

400

What is the main difference between Anaphase I and Anaphase II in meiosis?

In Anaphase I, homologous chromosomes are separated; in Anaphase II, sister chromatids are separated.

400

What is the difference between cytokinesis in plant cells and animal cells?

In plant cells, a cell plate forms to divide the cells, while in animal cells, a cleavage furrow forms.

400

What is the name of the phase where the cell prepares for mitosis by producing proteins and organelles needed for cell division?

G2 phase.

400

How many chromosomes do humans have in each somatic (body) cell?

46 chromosomes.

400

What happens to a cell if it fails the G2 checkpoint?

The cell cycle is halted, and the cell either repairs the DNA or undergoes apoptosis (programmed cell death) if the damage cannot be fixed.

500

If a diploid cell has 46 chromosomes, how many chromosomes will each gamete have after meiosis?

23 chromosomes.

500

What phase precedes mitosis and involves DNA replication?

Interphase.

500

What is the main purpose of the G1 and G2 checkpoints in the cell cycle?

To ensure the cell is ready for DNA synthesis (G1 checkpoint) and mitosis (G2 checkpoint), preventing errors.

500

What term describes the section of a chromosome that codes for a specific protein or trait?

Gene.

500

How do cancer cells bypass normal cell cycle controls?

They often have mutations in genes that regulate the cell cycle, such as p53, allowing them to divide uncontrollably.