WEEK 2 SUMMATIVE TEST IN SCIENCE 8

Why do cells go through mitosis?

• to synthesize DNA

• to replace damaged cells

• to produce energy for the cells

• to duplicate their chromosomes

What stage of the cell cycle is involved in the replication of the DNA?

• Anaphase

• Gap 1

• Gap 2

• Synthesis

In What phase of the cell cycle where the cell primarily grow in size and carry out its normal functions?

• G1 phase

• G2 phase

• M phase

• S phase

What phase plays an important part in the growth and development of our bodies?

• Mitosis

• Meiosis

• Cytokinesis

• Karyokinesis

What parts of the cell are involved in cell division?

• cell wall and nucleus

• cytoplasm and nucleus

• cell membrane and nucleus

• cell membrane and cytoplasm

What will be the chromosome number of each daughter cell after completing mitosis when the parent cell has 20 diploid chromosomes?

• 10

• 20

• 30

• 40

What happens during cytokinesis?

• DNA replication occurs

• Chromosomes condense

• Chromosomes align at the cell equator

• Cytoplasm divides, forming two daughter cells

What do daughter cells contain after mitosis?

• a random number of chromosomes

• an unknown number of chromosomes

• same number of chromosomes as the parent cell

• half the number of chromosomes of the parent cell

What part of the cell cycle will occur after cytokinesis?

• G1

• G2

• S phase

• Prophase

What is the significance of metaphase in mitosis?

• Nuclear envelope breaks down.

• Chromosomes condense and become visible.

• Chromosomes align at the equatorial plate.

• Chromatids separate and move towards opposite poles.