Cell cycle

A diploid cell has how many times the number of chromosomes as a haploid cell?

• Four times

• Half

• One-fourth

• Twice

What inherited feature, in specific combinations, determines an organism’s traits?

• Cell membrane

• Gene

• RNA

• Protein

What are identical copies of chromatin held together by cohesin at the centromere called?

• Sister chromatids

• Chromatin

• Histones

• Nucleosomes

Chromosomes are duplicated during what stage of the cell cycle?

• G1 phase

• Prophase

• Pro-metaphase

• S phase

Which of the following events does not occur during some stage of interphase?

• DNA duplication

• Increase in cell size

• Organelle duplication

• Separation of sister chromatids

Attachment of the mitotic spindle fibers to the kinetochores is a characteristic of which stage of mitosis?

• Anaphase

• Prophase

• Prometaphase

• Metaphase

The fusing of Golgi vesicles at the metaphase plate of dividing plant cells forms what structure?

• Action ring

• Cell plate

• Cleavage furrow

• Mitotic spindle

What would be the outcome of blocking the S phase of interphase?

• The cell would enter karyokinesis

• DNA replication would not occur

• Centrosome would be duplicated

• The cytoskeleton would be dismantled

At which of the cell cycle checkpoints do external forces have the greatest influence?

• G1 checkpoint

• M checkpoint

• G2 checkpoint

• G0 checkpoint

If the M checkpoint is not cleared, what stage of mitosis will be blocked?

• Prophase

• Prometaphase

• Metaphase

• Anaphase