Week 10.2

Which phase of the cell cycle is characterized by DNA replication?

• G1 phase

• S phase

• G2 phase

• M phase

What is the correct order of the stages of mitosis?

• Prophase, Metaphase, Anaphase, Telophase

• Metaphase, Prophase, Telophase, Anaphase

• Anaphase, Prophase, Metaphase, Telophase

• Prophase, Anaphase, Metaphase, Telophase

Tags

NGSS.HS-LS1-4

What is a chromosome made of?

• RNA and proteins

• DNA and lipids

• DNA and histone proteins

• RNA and histone proteins

What is the term for the region on a chromosome where sister chromatids are joined together?

• Telomere

• Centromere

• Chromatid

• Nucleosome

During which stage of mitosis do chromosomes align along the cell's equatorial plate?

• Prophase

• Anaphase

• Metaphase

• Telophase

Tags

NGSS.HS-LS1-4

What is the role of tumor suppressor genes in the cell cycle?

• They promote cell division by activating CDKs

• They inhibit cell division and prevent tumor formation

• They increase the rate of DNA replication

• They stimulate the production of growth factors

Tags

NGSS.HS-LS1-4

NGSS.HS-LS1-3

A cell has completed DNA replication and is preparing to enter mitosis. During which checkpoint would the cell verify that DNA replication was completed accurately before proceeding?

• G1 checkpoint

• G2 checkpoint

• Spindle assembly checkpoint

• S phase checkpoint

A student observes a cell in which the chromosomes are condensed and the nuclear envelope has broken down, but the chromosomes have not yet aligned at the cell's center. Which stage of mitosis is this cell most likely in?

• Metaphase

• Anaphase

• Telophase

• Prophase

Tags

NGSS.HS-LS1-4

If a mutation causes a proto-oncogene to become an oncogene, what would be the most likely effect on the cell?

• The cell would undergo apoptosis immediately

• The cell would stop dividing permanently

• The cell would divide uncontrollably, potentially leading to cancer

• The cell would produce fewer growth factor receptors

A human somatic cell contains 46 chromosomes before entering mitosis. How many chromosomes will each daughter cell contain after mitosis is complete?

• 23

• 46

• 92

• 12

Tags

NGSS.HS-LS1-4