Test 2

What process ensures that DNA is distributed accurately between new cells during cell division?

• DNA replication

• Chromatin formation

• Mitosis

• Cytokinesis

Tags

NGSS.HS-LS1-4

What is the role of chemical checkpoints in the cell cycle?

• To speed up cell division

• To regulate the cell cycle

• To create new cells

• To destroy old cells

Tags

NGSS.HS-LS1-4

What is the result of mitosis and cytokinesis?

• Four identical daughter cells

• Two identical daughter cells

• One identical daughter cell

• Three identical daughter cells

Tags

NGSS.HS-LS1-4

What happens to cells that do not die at a failed checkpoint?

• They stop dividing

• They continue to divide, out of control

• They become dormant

• They repair themselves

Tags

NGSS.HS-LS1-4

What is the composition of chromatin?

• DNA + Lipids

• DNA + Proteins

• DNA + Carbohydrates

• DNA + RNA

What are the two lines of defense against cancer?

• Immune system attacks abnormal cells and tumor suppressor genes are turned on

• Chemotherapy and radiation therapy

• Surgery and immunotherapy

• Genetic testing and lifestyle changes

Tags

NGSS.HS-LS1-3

What can result from errors in DNA replication or exposure to mutagens?

• Mutations

• Cancer cure

• Enhanced immunity

• Increased metabolism

Tags

NGSS.HS-LS3-2

Which of the following is a cancer risk factor mentioned in the document?

• Inherited mutations (BRCA1)

• Regular exercise

• Balanced diet

• Adequate sleep

What does the term "diploid" refer to in human cells?

• Two sets of chromosomes

• One set of chromosomes

• Three sets of chromosomes

• Four sets of chromosomes

What determines sex in humans according to the document?

• X and Y chromosomes

• A and B chromosomes

• M and N chromosomes

• P and Q chromosomes